Human Body Essay


It is surprising to see how a human body functions with maximum capability. Whether we are talking, walking or seeing, there are distinct parts in our body that are destined to perform a particular function. The importance of each part is discussed in this human body essay. When we feel tired, we often take a rest and lie down for a moment. But our body continues to work, even when we take a break. Even if you are tired, your heart will not stop beating. It pumps blood and transports nutrients to your body.

The human body is made up of many parts and organs that work together to sustain life in our body. No organ or body part is more important than the other, and if you ignore one of them, then the whole body will be in pain. So, let us teach the significance of different parts of the body to our children through this essay on human body parts in English. To explore other exciting content for kids learning , head to our website.

essay human body

Different Systems in the Human Body

The human body looks very simple from the outside with hands, legs, face, eyes, ears and so on. But, there is a more complex and significant structure inside the body that helps us to live. The human body is made up of many small structures like cells, tissues, organs and systems. It is covered by the skin, beneath which you could find muscles, veins, and blood. This structure is formed on the base of a skeleton, which consists of many bones. All these are arranged in a specific way to help the body function effectively. In this human body essay, we will see the different systems in the human body and their functions.

The circulatory system, respiratory system, digestive system and nervous system are the main systems of the human body. Each system has different organs, and they function together to accomplish several tasks. The circulatory system consists of organs like the heart, blood and blood vessels, and its main function is to pump blood from the heart to the lungs and carry oxygen to different parts of the body.

Next, we will understand the importance of the respiratory system through this human body essay in English. The respiratory system enables us to breathe easily, and it includes organs like the lungs, airways, windpipe, nose and mouth. While the digestive system helps in breaking down the food we eat and gives the energy to work with the help of organs like the mouth, food pipe, stomach, intestines, pancreas, liver, and anus, the nervous system controls our actions, thoughts and movements. It mainly consists of organs like the brain, spinal cord and nerves.

All these systems are necessary for the proper functioning of the human body, which is discussed in this essay on human body parts in English. By inculcating good eating habits, maintaining proper hygiene and doing regular exercises, we can look after our bodies. You can refer to more essays for kids on our website.

Frequently Asked Questions on Human Body Essay

Why should we take care of our bodies.

Most of the tasks we do like walking, running, eating etc., are only possible if we have a healthy body. To ensure we have a healthy body, all the systems must function properly, which is determined by our lifestyle and eating habits. Only a healthy body will have a healthy mind, and hence, we must take good care of our bodies.

What are some of the body parts and their functions?

We see with our eyes, listen with our ears, walk with our legs, touch with our hands, breathe through our nose and taste with our tongue.

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Essay On Human Body

Differences and similarities between bullfrog and crayfish.

First the food enters the mouth and then goes to the esophagus where it is pushed down to the first part of the stomach. The first part of the stomach is the cardiac stomach which holds chitinous teeth which grind up the food even more than it has been in the mouth. Then it goes to the pyloric region which is the second part of the stomach where nutrients are sucked out of the food.

Explain How Might The Digestive System And The Circulatory System Work Together

Digested molecules of food, as well as water and minerals from the diet, are absorbed from the cavity of the upper small intestine. Most absorbed materials cross the mucosa into the blood and are carried off in the bloodstream to other parts of the body for storage or further chemical change. As already noted, this part of the process varies with different types of nutrients. 5. 2) Page B13, and #1-4 1.

Health And Social Care Unit 5 Anatomy And Physiology

The proper functioning of one system relies on the proper functioning of the other system. In other words, the digestive system needs to be in good working order to support the functions of the cardiovascular system. An example of the digestive and cardiovascular systems interrelating is: the first step in digestion of fat is to dissolve it into the intestine where bile acids produced by the liver dissolve the fat into fatty acids and cholesterol. The bile acids join with the fatty acids and cholesterol and vessels then carry the changed fat to the veins of the chest, and the blood carries the fat to storage in different parts of the body.

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This organs help get rid of the wastes from the body as either urine or

Unit 3 Digestive System Analysis

The stomach is a very important part of the digestive system. It is a j- shaped muscular organ that acts as a bag or sac to collect churn food with digestive juices. When the stomach is filled with food the rugae stretch out, and disappear. The food mixes with hydrochloric acid and other gastric juices to form a liquid mixture called chyme, which then passes through the remaining portion of the digestive system. So this means to me that when you eat something it goes to the stomach and is mixed with acids that breaks it down and dissolves the food.

Crayfish Digestion System Essay

The digestion tract for earthworms is much like the crayfish. Food enters the mouth and gets pushed down into the esophagus by the pharynx. Next in line is the crop; an organ very similar the cardiac stomach. In the crop food in held until it is moved into

Epiglottis Digestive System

The digestive system is a system that allows you to gain energy from the food you eat. The digestive system is made up of the mouth, the esophagus, the epiglottis, the stomach, both the sphincter and the pylorus, the liver, and finally the small intestine and the large intestine. The mouth breaks down the food into smaller pieces and then the tongue moves the chewed up food to the throat. Then the food travels down the esophagus into the stomach. When you swallow the epiglottis moves the food down the esophagus and not the windpipe.

Cartesian Dualism

The inquisition and philosophies between the mind and body have been being discussed for hundreds of years. Whether or not we our minds have a practical influence on our body. Or human minds are of its own entity and contain a soul that constitutes how we act and function. Dualism constitutes that the mind and body are not identical and therefore the effect of one does not influence the other. Many philosophers believed in the concept of dualism.

Fetal Pig Lab Report

The digestive system is responsible for chemically and mechanically breaking down food and includes organs such as, mouth, esophagus, stomach, small intestine, rectum, anus, and additional accessory organs. These organs all aid in the breakdown of food. Food is broken down mechanically by chewing and churning in the stomach, and chemically by acidic enzymes in the stomach and in the small intestine which receives enzymes from the pancreas that are specifically designed for the breakdown of nutrients. Once the food and nutrients are broken down, the excretory system removes whatever the body decides is waste by filtering blood in the nephrons of the kidneys and turning it into urine which is then collected in the bladder and removed from the body when the bladder is

Morbid Anatomy Museum Essay

The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins. -Edgar Allan Poe.

Stem Cell Research Informative Speech

She states : “There are over 200 different types of cell in the human body, all with different jobs to do. The stem cells role is to replace other cells when they die as a result of disease, injury or just general wear and tear. For example a skin stem cell will replace dead skin cells. Our body also has stem cells for tissue like muscle and blood. They can be found in places like the skin or bone marrow.

Essay On Muscle Contraction

Almost half of a human 's body weight is composed of muscle. There are three distinct types of muscle tissue: cardiac muscle, skeletal muscle, and smooth muscle. Each of the muscle tissues have different structures, properties, characteristics, and roles in our body. Properties of muscle tissues include excitability, contractility, extensibility, and elasticity. Contractility is the ability to shorten, which causes movement of the structures to which the muscles are attached.

The Essential Role Of Macromolecules In Our Body

Macromolecules are essential nutrients that our body needs in order to function. We cannot manufacture theses nutrients, so we must obtain them from our environment. Macromolecules are an essential source in our bodies and they help keep us alive. We call theses building blocks of life carbohydrates, lipids, and proteins. Carbohydrates are made up of sugars, such as glucose, and fructose.

Digestive System Research Paper

The Digestive System The digestive system is a system consisting of the mouth, oesophagus, stomach, gallbladder, small intestine, large intestine, the rectum and the anus. The functions of the digestive system are: • To break down food particles into molecules for digestion • To absorb into the bloodstream the small molecules produced by digestion • To eliminate un digested and unabsorbed foodstuffs and other waste products from the body The full digestive process begins at the mouth. The food enters the mouth and is chewed.

Essay On Skin Structure

The Skin Structure and Function: The skin is the largest organ. It covers the whole body and is water-resistant. The skin consists of two layers; the Epidermis and Dermis (under which lies the subcutaneous or fatty layer).

More about Essay On Human Body

Body: What Makes Us Uniquely Human Essay


The human body can be defined as the physical structure of the human organisms. The human body is said to be composed of various components that include the following, two arms, one head, torso, neck and two legs. It is through these physical body components that make us to function. The human body is said to undergo various strategies before it can be fully formed, For example people are made who they are by genes. It is these genes which are said to make us different from each other in the many societies we come from. So before one becomes completely an adult, this body consists of close to 100 trillion cells and all these different functions are said to perform different roles.

The body is also made of many organs which are also said to perform various functions. A good example is the respiratory system and the digestive system. For example the respiratory system is one of the body organs with a specialized function in our bodies. Biologists argue that respiratory system helps in supplying our bodies with blood. This blood is said to carry oxygen which is needed most in our bodies. The respiratory system does this with the help of the breathing system.

When people breathe, we inhale oxygen and carbon dioxide whereby oxygen is taken in the blood while carbon dioxide is breathed out as a waste. So in this case, if the bodies are affected, it means that then the whole body will also be affected. (Bogdan, 2000).

Our bodies are said to be quite unique due to the different roles which are played by our bodies. So, when our bodies are infected by a disease, then it means that our bodies will not be in a position to function well as it is supposed to function. Illnesses are said to make us understand more about our bodies. Our bodies are composed of various immune systems which are supposed to play a vital role in our bodies. This system is quite responsible for fighting off bacteria’s in our bodies and various body infections. It is the role of the immune system which helps in protecting our bodies from the various bacteria’s, viruses plus other harmful organisms that cause diseases in our bodies.

It is during this time that we are in a position to reflect back on our bodies and the various functions which our bodies function. For example, when the body system immune system is not working you find that our bodies are not in a position to function well. This is because of the various functions the immune system plays in our bodies. Our bodies’ immune system works to battle off diseases as fast as they could. The immune system has blood cells.

It is these blood cells which help to fight back these diseases. So when our bodies are infected by a disease, it means that the immune system is not in a position to function well. As a result, our bodies eventually become weak and not able to function well like a healthy person. It is also during this time when we try to reflect back about our bodies are quite unique in the various roles they play. (Bogdan, 2000).

When illness enters in our own body or even that of another say ache, funny feeling, or movement causes us pain or anxiety. These are examples of various body illnesses. Say for example when one has a headache, one is in a position to feel uncomfortable, dizziness and sometimes unconscious. This is because our bodies are made in a way when one part of the body has been interfered with; you find that the whole functioning of our bodies stops.

So, it is during this time when we recognize that our bodies are quite important and necessary action needs to be taken say visiting a doctor unlike other living things say animals. So in this case, the various roles which are played by our bodies makes us uniquely human as when compared with other living things. We are in a position to take care of our bodies by going in to hospitals since when someone is sick, he/she is not in a position to function well. We are unique and also we are more than the multitude of the chemicals substances that are said to make up our physical bodies. We are alive, we feel, act, sense and also think and hence we can be termed as quite unique beings.

When our bodies are unwell, we need even more than the chemical interventions which are the various medicines taken when somebody is ill. We further need more strategies which are supposed to restore back our normal health for the body to start functioning well as usual. So, it is during this time that we need medicines which are aligned to our various body conditions, we also need enough rests and also tender loving care so that our bodies can get humble time to recover from that particular sickness. When our bodies are healthy, our bodies naturally work in order to maintain balance and also to heal itself. So in this case, our inherent tendency to the self heals needs to be highly recognized and also supported when the body is exposed to illness. (Bogdan, 2000).

So it is during this time that we recognize illnesses as a good opportunity for us all. It is during this time that we are reminded that we should take good care of our bodies. We are reminded to take good care of ourselves and also to live in a more balanced way.Illneses can also make us to develop other parts of ourselves. Worked with our illness is said to begin a healing crisis that can lead to a positive change and finally a new direction. (Hamilton, 2006).

Personally I tend to think that there is no clear distinction between the body and the mind. These two things are said to work hand in hand. None is said to exist without the other. This is because a mind can not exist without the body and the body can not exist without the mind. Although this point can be debatable, many argue that there is no clear distinction between the two. They are said to function together. A good example is that our minds are made of sensory organs which are said to dictate what the rest of the body has to do.

For example raising ones hand in order to ask a question in class? How will this body sense organs cause sensation to the sensory organs in the mind if the two were quite different. It means that there will be no connection between the two and the various body functions will not be in a position to function since the sensory organs are said to dictate the body what to do. (Hamilton, 2006).

So, in this case, we found that the body is united with the mind in order to make human beings. None is said to exists without the other since there roles are said to go together.” We are neutral beings”. “Our brains are said to take their inputs from the rest of our bodies, what our bodies are said to be and how they are said to function in the world thus structures the very concepts we can use to think, we can not just think anything only what our embodied brains are said to permit”. So the mind is said to be one of the roles our bodies’ play which makes us uniquely human. It is by the role of the mind that our bodies are in a position to function well. Human beings are endowed with minds to think unlike other living creatures say animals. So, it is the role of the mind that is said to make human beings quite unique and important. (Hamilton, 2006).

Human beings are said to be unique due to the various roles which are played by our bodies. Our bodies are said to perform various functions. So, incase our bodies are exposed to threats or even diseases, it means that we are not able to function well. So it is during this time that we are reminded of our bodies. So, we are supposed to take good case of our bodies since we are unique. It only happens when these bodies are exposed to the various illnesses so it’s said to be a good time to reflect back on our bodies and try to treat them well.

Hamilton, M 2006,”The vital role that our immune systems play”. EzineArticles 12.

Couser, G 1997, Recovering bodies: Illnesses, disability and fife writing, Madison, University of Wisconsin.

Bogdan, R 2000, Human bodies. Chicago, University of Chicago Press.

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IvyPanda. (2021, August 18). Body: What Makes Us Uniquely Human.

"Body: What Makes Us Uniquely Human." IvyPanda , 18 Aug. 2021,

IvyPanda . (2021) 'Body: What Makes Us Uniquely Human'. 18 August.

IvyPanda . 2021. "Body: What Makes Us Uniquely Human." August 18, 2021.

1. IvyPanda . "Body: What Makes Us Uniquely Human." August 18, 2021.


IvyPanda . "Body: What Makes Us Uniquely Human." August 18, 2021.

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Review: Introduction to the Human Body

Here is what we have learned from Introduction to the Human Body :

  • The human body is a single structure but it is made up of billions of smaller structures of four major kinds: cells, tissues, organs, and systems.
  • An organ is an organization of several different kinds of tissues so arranged that together they can perform a special function.
  • A system is an organization of varying numbers and kinds of organs so arranged that together they can perform complex functions for the body.
  • Ten major systems include the skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and the reproductive system.
  • Body functions are the physiological or psychological functions of body systems. Survival of the body depends on the body's maintaining or restoring homeostasis, a state of relative constancy, of its internal environment.
  • Human life process includes organization, metabolism, responsiveness, movements, reproduction, growth, differentiation, respiration, digestion, and excretion. All these processes work together, in fine-tuned balance, for the well-being of the individual and to maintain life.
  • Life depends on certain physical factors from the environment, which include water, oxygen, nutrients, heat, and pressure.
  • Directional terms
  • Terms describing planes of the body
  • Terms describing body cavities

Human Anatomy - Essay Examples And Topic Ideas For Free

Human anatomy is the scientific study of the body’s structures, including the skeletal, muscular, and organ systems. Essays on human anatomy might explore the major systems of the human body, the recent advancements in understanding human anatomy, and the implications of these advancements for medicine and healthcare. Moreover, discussions could delve into the historical evolution of anatomical knowledge, the intersection of anatomy with art, and the ethical considerations in anatomical research and education. Analyzing the methodologies used in anatomical study, comparing human anatomy with the anatomy of other organisms, and examining the portrayal of human anatomy in cultural and societal contexts can provide a rich exploration of this fundamental scientific discipline. A substantial compilation of free essay instances related to Human Anatomy you can find in Papersowl database. You can use our samples for inspiration to write your own essay, research paper, or just to explore a new topic for yourself.

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The human body is comprised of multiple separate systems that work together to maintain homeostasis, regular, stable internal conditions. The maintenance of internal function depends on a variety of variables: body temperature, fluid balance, concentration of sodium, potassium and calcium ions, and blood sugar levels. The respiratory system is responsible for the function of a series of organ in taking in oxygen and expelling carbon dioxide. The circulatory system, also known as the cardiovascular system, is responsible for the organ […]

Anatomy and Physiological Aspect of a Football Player

Introduction Football is a well-known sport that is adored and watched by millions of people around the world. It is by far, the world’s most popular team sport that is played by both men and women. Football players are demanded to be physically fit and healthy as their agility, strength and flexibility are greatly tested during a football match. Football players spent hours each day practising and training on the training ground to improve their physical abilities such as their […]

Respiratory System – a Group of Respiratory Organs

The respiratory system is a group of organs and structures that helps us breathe. It is composed of the lungs, airways, muscles, and associated blood vessels. The airways, which transport oxygen-rich air to the lungs and remove carbon dioxide, include the nose and connected air passages (nasal cavities), the mouth, the larynx (or voice box), the trachea (windpipe), tubes (bronchial tubes or bronchi) and branches. Upon entering through the nose or mouth, the air is both warmed and moistened to […]

MRI Based Techniques in Diagnosing Alzheimer’s Disease

ABSTRACT With an aging population comes associated health complications. Senior Citizens aged 65 years and older have many health deficits but the most feared is Alzheimer's disease. Alzheimer's Disease is a neurodegenerative brain disorder. A brain disorder of this kind causes significant alterations to normal brain functions as well as structural. Magnetic Resonance Imaging, also known as MRI, is a diagnostic imaging modality that is used to diagnose and stage this disease as well as multiple other age-specific brain disorders. […]

Respiratory System – Releases Waste Gases through Breathing

The respiratory system is the bodies system that introduces gases into the body and releases waste gases through breathing. The main function is to transport air into the lungs, facilitate the diffusion of oxygen into the blood stream, and exhale carbon dioxide from the blood through exhaling. The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. The mouth, nose, and nasal cavity function is to warm, filter, and […]

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An Overview of the Biomechanics and Risk Factors with UCL Injury in Baseball Pitchers

In 1974, orthopedic surgeon Frank Jobe marked a pivotal movement in sports medicine history by performing the world's first reconstruction of the ulnar collateral ligament of the elbow (UCL) on Los Angeles Dodgers pitcher Tommy John. This revolutionary surgery, now coined ""Tommy John's surgery"", has become now commonplace amongst individuals pitching at all levels of baseball since. The prevalence of successful reconstruction of the UCL has grown tremendously since Jobe's pioneering surgery. However, the incidence of injury to the UCL […]

Respiratory System Function

Imagine your on the labor and delivery floor of a hospital and you hear a loud and robust cry, signaling the birth of a new born baby. A baby's first sounds are highly anticipated, as well as very important . Have you ever wondered why? A baby takes it's first breath about 10 seconds after birth due to the response of temperature change and transition into a new environment . This reaction is displaye d by the central nervous system […]

Breathing is Main of the Respiratory System

The respiratory system is a system that is responsible for a few things. The respiratory system is responsible for the swallowing, speech, and most importantly the breathing. The body must inhale the oxygen and exhale the carbon dioxide. The respiratory system has the responsibility of getting the oxygen to the blood. The oxygen must enter the body so the blood can circulate throughout the entire body. The nose, mouth, pharynx, trachea, larynx, lungs, and bronchi are all parts of the […]

Homeostasis’ Components

Introduction Homeostasis is where the body is maintained at steady conditions. The method remains vital, and the body needs the situation to work. It keeps adjusting based on all things considered and temperature of the body cells to work in the environment. In the inner environment, together temperature and liquid sum continue changing because of the different components. Liquids could rise or drop relying upon the water admission of a human, therefore liquid levels are active and not fixed in […]

Reflexive Practice in Bone Fractures

Reflective practice was carried out on a case of boxer’s fracture to the right hand at the minor injury unit. Gibb’s Reflective Cycle (Gibbs, 1988) was used to aid the reflective process and to assist with critical evaluation of recent evidence on the assessment and management of boxer’s fracture. Gibb’s reflective model comprises of 6 stages: description, feelings, evaluation, analysis, conclusions, and action plan (Finlay, 2008). A 28-year-old patient presented with an injury to the right hand after punching a […]

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1. What are the values for Mary's tidal volume (TV) and the alveolar ventilation rate (AVR)? (Remember to consider the dead space of 150ml). Normal alveolar ventilation is 4.0-5.0L. How does Mary's AVR compare with normal volumes? a. Tidal volume= Minute Ventilation Rate divide by respiratory rate (MVR/RR) MVR= 6.1L/min=6100ml?min RR=30bpm TV= 6100/30=203ml b. Alveolar ventilation rate= the difference between Tidal volume and Dead space multiplied by Respiratory rate (TV-DSV)*RR TV= 203ml DSV=150ml RR=30bpm AVR=(203-150)*30=1590ml=1.6L Mary's AVR is in 2.5-3 […]

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Organs of the Respiratory System

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Human Body Essay

essay human body

The Body: The Mind Overpowering The Human Body

The mind and body have been studied throughout time both in conjunction and individually. Ancient philosophies such as Plato’s (Silverman, 2013) viewed the body as temporary where as the mind was from another world therefore being able to transport. This means that the two were only united until the death or decay of the body and because the mind was from another world, it was the only thing capable of viewing universal truths. These philosophies are still being represented in 20th century literature. However, thanks to the development of both society and technology these ancient philosophies are being challenged in the way that more recent works of literature are viewing the body as either equally or even more powerful than the mind. The Body by Hanif Kureishi is a prime example of the mind overpowering the body. In this novel we have Adam an old man who is…

Human Body Art Essay

The human body has been a mainstay in the art world and its use spans across time and most ever culture. The human form has been used to tell stories, communicate cultural values, and reflect religious beliefs. It can be used to show emotion like happiness, sadness, despair and status such as power, importance, or poverty. The artist may use a realistic form or something morphed or stylistic based on what he is trying to convey to his audience. Whatever the purpose may be, the use of the…

Diets Affecting The Human Body

which is essential for health. So people should realize that to reach old age and still do what you love is to know when to have that happy medium between food and exercise. The body has been designed by nature to eat certain things but does not have to be switched out to alternatives. The human body throughout time has relied on simple things such as sugar, protein, and water. Diets back in the 1800’s…

How Concussions Affect The Human Body

My topic is how concussions affect the body mentally and physically. This will look at the aspects of concussions that affect people and how different severity of concussions affect people. The main issue with concussions is they can go unnoticed to receive the “treatment” for it. The treatment for concussions is bed rest with no lights, electronics, and no loud noises. There is a debate about weather there should be a drug to help with the symptoms of concussions, or there should not be a drug…

The Naked Human Body: The Ancient Greeks And The Renaissance

notable. One aspect that has been under the microscope is the naked human body and how those time periods viewed nudity. Eras like the Upper Paleolithic and Aegean saw the female naked body as a way to bring luck to women during childbearing and fertility. Other cultures like the Ancient Greek and the Renaissance era choose to celebrate the human body as a work of art to be replicated and viewed often. The Modern World had a different opinion and thought that the naked human body brought nothing…

Acid-Base Reactions Affecting The Human Body

anatomy of a human exists as an extremely complex and complicated phenomena. Although human anatomy primarily falls under biology, it also incorporates various characteristics from other sciences including chemistry. Among these characteristics, lies the relationship that exists between acids and bases for the functionality of the body. Therefore one can conclude that, acid-base reactions affect the human body through its role in the digestive, urinary, and respiratory system while also…

Analysis Of The Human Body In Alice Walker's 'Meridian'

When asked for his definition of the human body is, Eduardo Galeano said, “The Church says: the body is a sin. Science says: the body is a machine. Advertising says: The body is a business. The Body says: I am a fiesta.” This quote ties into the depiction of the female body in Alice Walker’s novel Meridian. Walker paints the human body as a vital element in the Civil Rights Movement during the 1960s in her novel Meridian. The novel’s protagonist, Meridian, struggles with internal and external…

Personal Narrative: My Love For The Anatomy Of The Human Body

Growing up, sports were always something I cherished, something I filled a lot of my free time with, and something I used to identified my persona. I have experienced my fair share of injuries from concussions to broken bones and while these things prevented my participation in sports, they intrigued me. In fact, the wholesome health of the human body has always appeared extremely fascinating to me. My love for the anatomy of the human body was uncovered Sophomore year amidst a basic health…

Greece's Influence On The Human Body

1) Greeks were the people who thought human body is one of the best art. They were the first who made image of man. They were so into human body that they studies human body so well and curved into marble. They curved truly realistic human body that we can image. Making a man body was completely new no one ever had done this before in history. After few time they stopped making this sculptures because they thought this was not very interested. They wanted to come up with something very…

Human Body Analogy Paper

is like a human body. He defines the different parts of the body, down to its organs, in comparison with the systems of a city. He goes from the skeletal system, to the heart, to the muscular system, to the digestive system, to the internal organs, and also the outer features of the body like the nose and ears. Looking at the human body as it corresponds to a city helps us to understand it. I agree with Register’s analogy of the human body compared to the works and buildup of a city. I actually…

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Chemistry of Human Body

The body and its elements.

The body contains more than 60 elements, however its massive section has solely four of them, carbon, nitrogen, oxygen and hydrogen. They are all beneficial in special ways ranging from the blood, tissues and muscles improvement as well as nutrient processes. In this essay, I shall discuss six factors among them being carbon, oxygen, nitrogen, hydrogen, calcium and iron.

Carbon is the fundamental constructing material of life on the planet. One of the motives as to why this is true is because of its capacity of making four bonds to the nearby atoms and can effortlessly unite with other carbon atoms and thus make it an essential building block. The process then becomes critical to the life creation of constituent such as lipids, proteins, carbohydrates and the nucleic acids such as DNA and RNA.

Carbon nanotubes can also assemble themselves and create a structure that is strong have electrical, thermal and optical properties. it is the only backbone for different molecules with the traits required for organisms. Its bonds are firm to the point of resisting environmental stresses but also weak for manipulation by enzymes in our bodies, which is a metabolism requirement. When we eat, the food is either converted into muscles or fats depending on our levels of exercise, this conversion is either breaking or forming bonds, and the energy we gain gets stored in the carbon-based molecules within our bodies, and this is a requirement for life (Simms & Zamponi, 2014, p.24).

Some of the functional groups include alcohol: it is a biomolecule containing at least one hydroxyl group (R-OH) which adds polarity to the organic molecules due to its intense nature of electronegativity of the oxygen atoms, and this makes most alcohol to dissolve in water through the formation of hydrogen bonds. Another group is the carbonyl which increases polarity and also the reactivity of organic molecules. They tend to be volatile and stimulates the human sense with either pleasant or unpleasant smell. Other groups include carboxyl, amines and the phosphate groups. When carbon burn in the air, it forms carbon dioxide (C+O2 →CO2). But when there is air restriction, it forms carbon monoxide CO (g). Again, when it reacts with water under forcing conditions, it forms CO and hydrogen H2 (C+H2O→CO+ H2). The reaction is endothermic. Carbon also reacts with halides to give carbon halides. For instance, reaction with fluoride (C+ F2 → CF4 + C2F6 + C5F12).

Hydrogen makes an approximate of 90% of all atoms and is essential in the body operations. One of the used ways is through the water which is made up of two-thirds of it. The body is made up of up to 60% of water and hydrogen helps the cells to remain hydrated; eliminate toxins and other wastes; transport nutrients lubricates the joints and supports the immune system in sending defensive cells to battle the infection-causing fungus, viruses and bacteria (Ito & Suda, 2014, p.243). It also plays a fundamental role in the energy production, for the body to function, it requires adenosine triphosphate (ATP) energy. The mitochondria of the cells receives hydrogen ion which helps in the formation of the ATP.

Water molecules pull each other; the plus side attracts the minus of the other and also that of the oxygen atom. Another example of the interactions is the weak bond that exists between the hydrogen partial positive side and a more electromagnetic atom like oxygen. Water molecules also get enticed to other ions and polar molecules. Such are called hydrophilic, and the non-polar called hydrophobic. Some of the groups of hydrogen include halogens which contain halogen bonds; hydroxyl with oxygen bonds; those containing nitrogen and also others containing sulfur. Also, some groups have phosphorous and others boron elements. Hydrogen has one electron in its outside octet. During the formation of a molecule, two atoms combine. Both of them feel the attraction of the two electrons held by each and thus forming the covalent bonds. Hydrogen has an atomic number 1, mass of 1.007825g.mol-1, negativity of 2.1 according to Pauling; density of 0.0899×10 -3 g/cm -3 at a temperature of 20 °C; the melting point should be -259.20C, boiling point -252.80c. Moreover, other properties include the ionic radius of 0.208 (-1) nm, three isotopes and 1s1 electronic shells. The bond of hydrogen can only be formed by dipole-dipole between the negative atoms and a hydrogen atom that attaches to a donor. Some of the only atoms that can form a hydrogen bond donor include fluorine and nitrogen. Here is an illustration with oxygen (2 H2 + O2 2 H2O). But an acceptor can be any atom as long as it is a polar bond, electronegative and has a lone pair with the example of carbon (C3H8+ 5 O2 3 CO2+ 4 H2O).

The human body needs nitrogen in forms of amino acids, from proteins to manufacture other amino acids that it utilizes in synthesizing. And if not used in the synthesis of protein, then they are broken into energy. Human tissues contain proteins, and the metabolic process depends on the enzymes consisting of different types of proteins (Davila, et al. 2013, p.114). Nucleic acids in the DNA and RNA also has nitrogen. Tissue repairs and cell replacements all require nitrogen for the production of new cells. It can also be used to make heme in the hemoglobin which helps in carrying oxygen in the red blood cells.

Nitrogen makes up to 80% of the atmosphere and interacts in two ways; through soil bacteria that form nitrates and through lightning. Plants take the nitrates, converts it into proteins which then ends up to the herbivores and carnivores and after excretion, it is released back to the atmosphere. Human being causes the nitrogen deposition through the burning of fuels, ranching and fertilizing of crops among others. The gas has a wide range of functional groups such as nitrate, nitrites, amides, amines, carbodiimides, enamines, hydrazine, hydrazones, imines, oximes and urea among others. Some of the characteristics of nitrogen atoms include the atomic mass of seven, the electronegativity of three according to Pauling. Moreover, the density is 1.25×10-3 g/cm-3 at the temperature of 20°C; a melting point of -2100C, the boiling point of 195.80C; the van der Waals radius of 0.092nm and ionic radius of 0.171 nm (-3). Other characteristics includes: 4 isotopes, [He] 2s22p3 electronic shell, 1402 kJ.mol -1, 2856 kJ.mol -1 and 4578 kJ.mol -1 (first, second and third ionization energy respectively) (Masa, et al. 2015, p.10102).

Covalent bonding is the sharing of electron pairs, nitrogen has five valence electrons, and thus it needs three more to complete its octet. For instance; Nitrogen reacts with some few metals to display a reducing property, for instance (6Li + N2 2Li3N) it also reacts with hydrogen at 4000C and 200 atmosphere as 3H2 + N2 2NH3. It does not react with many halogens and sulfides. Nitrogen also reacts with oxygen to give: N2O (ni¬trous ox¬ide); NO (ni¬tric ox¬ide); N2O3 (dini¬tro¬gen tri¬ox¬ide); NO2 (ni¬tro¬gen diox¬ide) and N2O5 (ni¬tro¬gen pen¬tox¬ide).

Oxygen is absorbed in the human body through the bloodstreams to the lungs, then transported to the cells where changes take place. It has a vital role in the breathing and metabolism processes of living organisms; it supports the cell respiration in all aerobic creatures. Nutrient compounds usually get through enzymatic operations, and this oxidation becomes a source of energy for many animals especially mammals. The heat is then kept as adenosine triphosphate (ATP) in the mitochondria transport chain and also in cytoplasm and glycolysis. Oxygen interacts with plants; it is produced at daytime when making food and consumed at night (Prabhakar & Peers, 2014, p. 49). The results after consumption are the releases of carbon (IV) oxide. Oxygen molecules break to form two ions that then combine with other oxygen molecules to create the ozone; made up of three atoms. We find it in functional groups such as alcohols (with (R-OH)), amines (contains amino groups (R-NH2)), carbonyls and carboxyls (with carboxyl groups (R-COOH)) and phosphates (with (R-PO42–)). In the outermost shell, oxygen has six electrons, and thus it requires two to complete the octet. One atom then combines with another lacking the two electrons and therefore forms the covalent bond as shown in the figure below.

The atom has an electronegativity of 3.5 according to Pauling and a density of 1.429 kg/m3 at a temperature of 20°C, melting of -2190C and boiling point of -1830C. It also has vanderwaals radius of 0.074nm, ionic radius of 0.14nm (-2), 4 isotopes and the electronic shell ([He] 2s 2 2p 4) (Singer, 2014, p.66). Oxygen reacts with non-metals to form oxides, for example with nitrogen to give: N2O (nitrous ox¬ide); NO (ni¬tric ox¬ide); N2O3 (dini¬tro¬gen tri¬ox-ide); NO2 (ni¬tro¬gen diox¬ide) and N2O5 (ni¬tro¬gen pen¬tox¬ide). It also reacts with metals to give metal oxides, for instance with magnesium. (Mg+O2 MgO). Reacts with hydrogen to form water H2O.

Calcium and Iron

Calcium is vital for the blood clotting, stabilizing the pressure and contributes to the normal function of the brain. It also helps in building bones and muscle contractions. Iron is also an essential factor of hemoglobin, and without it, it would be difficult to carry oxygen to the cells (Abbaspour, et. al. 2014, p.164). Anemia is the problem of iron deficiency with characteristics of overall poor health. Iron also regulates the growth and developments of cells, maintain a healthy immune system and promote a better brain function. The melting and boiling points of calcium are 850°C and 1,440°C respectively and density of 1.54 g/cm3.

Most of the reactions of iron and Calcium follow the same trend, for example; they react with oxygen to form oxides (Fe2O3 and CaO); with water (Ca+ 2H2O → Ca(OH)2 + H2); halogens to form fluoride with example of fluorine (Ca + F2 → CaF2 and reaction with acid (Ca + 2HCl → Ca2+ 2Cl- + H2). Calcium has six isotopes (40, 42, 43, 44, 46, and 48) and has compounds such as limestone and slag and iron has four isotopes (54, 56, 57 and 58). These two elements do not make bond covalently but have an ionic one. Calcium has an electron configuration of 1s22s22p63s23p64s2 and iron 1s2 2s2 2p6 3s2 3p6 4s2 3d6. As seen above, elements are beneficial and vital for the human survival, and thus people should ensure they consume them in large quantities; they increase the overall health of human and other organisms. Different elements have different properties and roles as seen.

Abbaspour, N., Hurrell, R. and Kelishadi, R., 2014. Review on iron and its importance for human health. Journal of research in medical sciences: the official journal of Isfahan University of Medical Sciences, 19(2), p.164. Davila, A.M., Blachier, F., Gotteland, M., Andriamihaja, M., Benetti, P.H., Sanz, Y. and Tomé, D., 2013. Re-print of “Intestinal luminal nitrogen metabolism: Role of the gut microbiota and consequences for the host”. Pharmacological research, 69(1), pp.114-126. Ito, K. and Suda, T., 2014. Metabolic requirements for the maintenance of self-renewing stem cells. Nature reviews Molecular cell biology, 15(4), pp.243-256. Prabhakar, N.R. and Peers, C., 2014. Gasotransmitter regulation of ion channels: a key step in O2 sensing by the carotid body. Physiology, 29(1), pp.49-57. Masa, J., Xia, W., Muhler, M. and Schuhmann, W., 2015. On the Role of Metals in Nitrogen‐Doped Carbon Electrocatalysts for Oxygen Reduction. Angewandte Chemie International Edition, 54(35), pp.10102-10120. Simms, B.A. and Zamponi, G.W., 2014. Neuronal voltage-gated calcium channels: structure, function, and dysfunction. Neuron, 82(1), pp.24-45. Singer, M., 2014. The role of mitochondrial dysfunction in sepsis-induced multi-organ failure. Virulence, 5(1), pp.66-72.

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The Human Body Is An Amazing Thing Essay

The cardiovascular system essay.

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One of the most important systems in the body, keeping it alive, is the cardiovascular system. As a part of the circulatory system, the cardiovascular system pumps blood throughout the body through a network of many arteries and veins, providing it with nutrients and oxygen. Also, the cardiovascular fights infections and disease in the body and creates blood cells. Never the less, blood acts as a filtration system for the body and removes waste, cell debris, or bacteria from the bloodstream.

Unit 5 Health and Social Care Essay

The cardiovascular system is the process of the heart pumping the blood around the body through blood vessels, arteries, veins and capillaries. The main functions of the system are to transport materials to and from the cells around the body, to assist in temperature, to keep the levels of fluid in the body at the correct level, to distribute heat around the body and to defend the body. This system is the heart, which is a muscle that pumps blood around the body through arteries, veins and capillaries. Blood transports oxygen to the body cells which helps them to metabolise energy in the body. During this process the blood is also getting rid of any waste products of respiration, carbon dioxide and water. Blood also helps to supply heat, hormones, nutrients, salts and urea around the body. The heart is placed in between the lungs which is protected by the rib cage and is the size of a fist.

Cardiovascular System Essays

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The cardiovascular system, which consists of the heart and blood vessels, is the circulatory systems in our body. The major function of the system is transportation; the heart is the system pump and the blood vessels are the delivery routes. The heart transport respiratory gases, nutrients, wastes, and other substances vital to the body’s homeostasis to and from the cells by using the blood as a medium.

Roles of the Cardiovascular System

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Our cardiovascular system is composed of the heart and blood vessels. The main purpose of this system is to transport substances throughout the body. Even though transportation is the main function of the cardiovascular system, it is not the only function. Along with transportation we have protection and regulation.

Composed of the heart, blood vessels, and blood, the cardiovascular system is the body system that carries out the tasks of pumping and transporting blood, oxygen, nutrients, and waste products, and other substances throughout the body.

Body System In Relation To Energy Metabolism

The cardiovascular system consists of the heart, blood and blood vessels. The cardiovascular system is the major transport of materials to and from the cells. Blood is carried from the heart around the body via the arteries and the blood is then carried back to the heart via the veins. The

Health And Social Care Level 3 Unit 1 Anatomy And Physiology P4

The cardiovascular system delivers blood, nutrients, ions, gases, and heat throughout your body. The cardiovascular system is a transportation system. It supplies oxygen to the body too and this is the most essential function of the cardiovascular system. The cardiovascular system has other functions too. It carries digested food from the small intestine to all areas in the body that need it, distributes heat and fights diseases by using white blood cells to fight off

Digestive, Cardiovascular And Respiratory System

The cardiovascular system consists of the heart, blood vessels and 5 liters of blood that the blood vessels transport. The cardiovascular system is transporting oxygen, nutrients, hormones and cellular waste products through the body. The cardiovascular system is powered by the hardest working organ the heart.

Compare And Contrast Circulatory And Respiratory Systems

The circulatory system, also called the cardiovascular system, distributes vital nutrients throughout the body. The main organs are the heart and the blood vessels that run throughout the entire human body. Blood runs through the entire body, in the blood vessels, and contains cells and plasma.

The Cardiovascular System: The Circulatory System

There are three main functions of the cardiovascular system are: transportation where the heart pumps the blood vessels through the delivery way. It has been argued by (Medical terminology for cancer, 2014) that heart transports the respiratory gases, nutrients, wastes, and other substances that are needed by the body’s homeostasis to and from the cells by using the blood.

The Cardiovascular System Of Atherosclerosis

The cardiovascular system is composed of thousands of tubes, known as blood vessels that blood travels in. Blood is constantly being pumped to and from the heart through arteries and veins, respectively. Oxygen, nutrients, water, wastes are just some of the substances moving throughout the body via the blood vessels. Because this system is very complex, many issues can occur which inhibit the cardiovascular system from doing its job.

Blood Heart Disease

The heart is a muscular organ that pumps blood to continuously throughout your body. The heart is the center of the circulatory system. This system has blood vessels, such as arteries, veins, and capillaries. The blood vessels carry blood to and from all areas of the body. An electrical system regulates your heart and uses electrical signals to contact the walls of the heart. When the heart walls contract, blood pumps into the circulatory system. The heart chambers work to ensure that blood flows in the right direction. The heart is vital to your health and everything that goes on in your body. Without the pumping action, blood cannot circulate within the body. The blood carries oxygen and nutrients that your organs need to work properly. Blood

Cardiovascular System Research Paper

The system has two functions: to deliver oxygen and nutrients to cell and tissues & to remove carbon dioxide and other waste products from the cells and tissues. The base of the heart points toward the right shoulder, also it is about the size of your fist. The first layer of the heart wall is the epicardium. It is comprised of connective tissue that makes up the visceral pericardium. The middle layer is the myocardium, which is mostly cardiac muscle. The innermost layer is the endocardium. The heart has 4 chambers which allow is the pump correctly. Two atria chambers which receive blood and two ventricular chambers which discard of blood. There are two septa`s in the heart. The interventricular ( separates the 2 ventricles) and the interatrial (separates the 3 atria). Blood circulation is a thing because of the heart. Systemic circulation allows the blood to flow from the left side through the tissues and back to the heart entering on the right side. Pulmonary circulation allows the blood to flow from the right side to the lungs and back entering on the left side. A valve allows the blood to flow in one direction, it prevents backflow. There are 4 valves throughout the heart. They are the atrioventricular valve, bicuspid valve, semilunar valve, and the tricuspid valve. The two most important valves are the AV valve and the semilunar valve. The continuous circulation of blood through the body is vital for

Explain The Structure And Functions Of The Cardiovascular System

The cardiovascular systems function is to pass blood through ones body keeping their muscles oxygenated, to keep nutrients that are needed in the body and to help get rid of metabolic waste. The cardiovascular system is made up of three components, these are; the heart, the blood and the blood vessels.

Anatomy and Physiology of Ckd

The cardiovascular system is sometimes called the circulatory system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries. As the name implies, blood contained in the circulatory system is pumped by the heart around a closed circuit of vessels as it passes again and again through the various "circulations" of the body.

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Understanding the Complex Systems of the Human Body

The Human Body The human body is made up of a number of different systems. Each system has a separate function, but some work together. One system is the skeleton, which serves to support the body and protect the internal organs. The respiratory system enables us to breathe and take oxygen into the blood, which moves around the body by means of the circulatory system. The digestive system enables us to take in food needed for growth. Waste matter is ejected from the body by means of the urinary system. The nervous system controls the other systems and enables human beings to think. The endocrine system consists of various glands, such as the thyroid, sex and adrenal glands. The function of these glands is to secrete chemicals, known as hormones, into the blood. These hormones control various processes in the body, such as growth, sexual activities and digestion.. Each system is made up of organs. The lungs, for example, are part of the respiratory system. The heart is an organ in the circulatory system. The liver functions as part of the digestive system and other systems. Every organ is composed of several kinds of tissue. Epithelial tissue, which includes the skin, forms a covering over organs. Connective tissue supports and holds together parts of the body and includes bone and cartilage. Other types of tissue include nerve tissue and blood tissue. All tissue consists of cells. These are so small that they are measured in thousandths of a millimeter and can only be seen with a microscope. Each cell is covered with a thin membrane which surrounds a nucleus, and a jelly-like substance, called cytoplasm. This in turn contains minute particles, each with its own special function.

In this essay, the author

  • Explains that the human body is made up of a number of different systems.
  • Explains that the skeleton supports the body and protects internal organs. the respiratory system allows us to breathe and take oxygen into the blood, and the digestive system takes in food needed for growth.
  • Explains that the endocrine system consists of thyroid, sex, and adrenal glands. they secrete chemicals, known as hormones, into the blood.
  • Explains that each system is made up of organs, such as the lungs, the heart, and the liver.
  • Explains that every organ is composed of several kinds of tissue, including epithelial tissue and connective tissue.
  • Explains that all tissue consists of cells, which are so small that they can only be seen with a microscope.

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The integumentary system is composed of the skin and the structures related to the skin, which include the hair, the finger nails, the sensory receptors and the glands (Shier, Butler, & Lewis, 2009). This system has an important function since it provides protection to the body, helps to maintain body temperature, and contains sensory receptors (p.117). The skin has essential function such as regulating homeostasis and body temperature, also delaying the loss of water from deeper tissues, storing sensory receptor, synthesizing biomechanical, and discharging waste from the body (p.117). The skin has two layers: the epidermis (outer layer) and the dermis (inner layer) (p.117). There is also a subcutaneous layer or hypodermis (p.117). According to Shier, Butler, and Lewis 2009 “as its name indicates, this layer is beneath the skin and not a true layer of the skin” (p.117). This layer has the blood vessels that supply the skin (p.117).

The Interesting, Complex Digestive System necessary nutrients, such as stomach acid and saliva. The body also uses a waste system to take out the bad stuff in the body that cannot be used as nutrients or energy. Human beings, and all animals from the tiniest insect to the world’s largest mammal, must remove and dispose of wastes from their bodies. Separate systems work on gaseous, liquid, and solid waste. Waste excretion in living things helps maintain homeostasis which supports the basic ability to survive. There are many systems in the human body, from the circulatory which regulates blood flow throughout the body, to the nervous system and muscular system. Each system has its specific function and purpose in the body. However, it is fair to say that the digestive system, with all its necessary organs, enzymes, chemicals and processes is truly one of the most important systems in the human body.

The Vietnam War's Effects on Soldiers

Men in the Vietnam War did not know why they were there fighting in Vietnam and what their purpose was there. The United States justified their involvement in the war by asserting that they were combating communism and preventing communistic North Vietnam from taking over the more democratic South Vietnam. This affected the soldiers because they did not know why they were there killing the innocent villagers and civilians. They destroyed land and crops to combat the Viet Cong and the effects of Agent Orange, the toxin used to destroy the vegetation, are still prevalent today. A second reason the United States (U.S.) justified their implication in the Vietnam War was to prevent the spread of communism across Asia. The U.S. came up with the Domino Theory and said that if Vietnam became a communist country then so would the countries around it and so on and so forth (Herring). This war on communism did not bring any solutions because even today Vietnam is still a communist country; therefore, the soldiers do not feel they had fought for a real cause. No one received anything that was satisfactory to him or her from the war. The men ended up going home scared for life at the violence and deat...

Exploring the Complexity of the Circulatory System

The circulatory system is consisted of a group of organs that transfer blood throughout the body and is responsible for the flow of nutrients, oxygen, and other gases to and from all cells. It is also known as the body’s transport system. The system contains three essential components that make up the circulatory system: the heart, blood vessels, and blood. These elements are vital to the body for survival. It includes the pulmonary and systemic circulatory loop. Also, it contains these three independent systems that work together; the heart (cardiovascular), the lungs (pulmonary), arteries, veins, coronary and portal vessels (systemic).

The Effect of Osmosis on Potato Chips

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...acts and relaxes to mix and digest the food. The respiratory and digestive system work closely together to make energy. The respiratory system brings in the oxygen needed to make energy and the digestive system obtains the nutrients needed to make energy. The digestive system has the closest relationship with the circulatory system. As the digestive system breaks down food, it absorbs nutrients into the blood stream. The circulatory system then transport the nutrients attained through the digestive system to the rest of the body. In a more obscure way, the nervous system, specifically the medulla, controls all of the involuntary actions made throughout the digestive process. Finally, the endocrine system release many hormones that affect the digestive process. These hormones single when certain enzymes should be used and when certain nutrients should be absorbed.

Overview of The Cardiovascular System

The cardiovascular system - The cardiovascular system is responsible for transporting nutrients and removing gaseous waste from the body. It consists of the heart, which powers the whole process, the veins, arteries, and capillaries, which deliver oxygen to tissue at the cellular level. The cardiovascular system carries blood that is low in oxygen away from the heart to the lungs via arteries, where oxygen levels are restored through the air once oxygenated, this blood is then carried throughout the body via arteries, keeping our organs and tissue alive. The cardiovascular system is the workhorse of the body, continuously moving to push blood to the cells. If this important system ceases its work, the body dies.

The Skeletal System In The Human Body

After the skin, there is a layer called the dermis. The dermis is a broad layer of fibrous and elastic tissue (made mostly of fibrillin, elastin, and collagen) which gives the skin its flexibility and strength. The dermis incorporates nerve endings, sweat glands and oil glands, hair follicles, and blood

An Investigation to Demonstrate Osmosis Using a Potato

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Systems of the Human Body

The human body is very complex. It is like a job. You have to do a million things in one day to make it through the day. The body uses nine systems to do all of those jobs. They all have separate functions, but some work together. Each system is also made up of organs. There are many ways to care and protect the systems from the many different problems they can have. There are also many interesting facts about each system.

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In the twentieth century, technology is at an all time high in the world. This technology includes research, stock market shares, computers, medical advances, and a vast variety of other things. Among the advanced technology is a break through of computer use. Almost everyone at sometime in their day is using a computer for one task or another. Computers have taken the world and reshaped the possibilities of ideas and dreams in the past decade. Millions of people are using a computer daily according to

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