Articles In This Section
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Heart and Circulatory System
The heart and circulatory system are our body's lifeline, delivering blood to the body's tissues. Brush up on your ticker with this body basics article.
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About Body Basics
Remember the biology class you had in high school? Well, maybe you don't or maybe now that you have a child, your interest in how the body works has grown.
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Endocrine System
Although we rarely think about them, the glands of the endocrine system and the hormones they release influence almost every cell, organ, and function of our bodies.
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Bones, Muscles, and Joints
Without bones, muscles, and joints, we couldn't stand, walk, run, or even sit. The musculoskeletal system supports our bodies, protects our organs from injury, and enables movement.
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Metabolism
Brush up on metabolism basics - including common metabolic disorders - in this article.
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Mouth and Teeth
Our mouth and teeth play an important role in our daily lives. Here's a course on the basics - including common problems of the mouth and teeth.
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Skin, Hair, and Nails
Our skin protects the network of tissues, muscles, bones, nerves, blood vessels, and everything else inside our bodies. Hair and nails are actually modified types of skin.
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Lungs and Respiratory System
By the time we're 70 years old, we will have taken at least 600 million breaths. All of this breathing couldn't happen without the respiratory system.
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Female Reproductive System
Without the female reproductive system, there would be no perpetuation of life. Understanding it, what it does, and the problems that can affect it may help you better understand your own daughter's reproductive health.
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Male Reproductive System
Understanding the male reproductive system, what it does, and problems that can affect it can help you better understand your son's reproductive health.
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Blood
Blood is vital to bodily function. Read this article for the basics about blood, blood cells, blood diseases, and more.
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Eyes
The eyes are small compared with most of the body's other organs, but their structure is incredibly complex. Learn more about eyes, vision, and common problems with both.
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Kidneys and Urinary Tract
The bean-shaped kidneys, each about the size of a child's fist, perform several functions essential to health. Their most important role is to filter blood and produce urine.
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Spleen and Lymphatic System
The lymphatic system is an extensive drainage network that helps keep bodily fluid levels in balance and defends the body against infections.
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Immune System
The immune system, composed of special cells, proteins, tissues, and organs that protect against germs and microorganisms, is the body's defense against disease.
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Brain and Nervous System
The brain controls everything we do, and is often likened to the central computer within a vast, complicated communication network, working at lightning speed.
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Digestive System
The digestive process starts even before the first bite of food. Find out more about the digestive system and how our bodies break down and absorb the food we eat.