Body Parts
Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section. See more »
what's inside: anatomy channel
Anatomy covers the structure and functions of the body's organs and systems. Learn how these components work in harmony to sustain human life.
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Body Systems
Your body is pretty amazing. At any given point you have many biological processes going on -- circulatory, digestive, brain & central nervous systems and more. Learn about these body systems as well as the eye, ears, nose and throat. See more »
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Cells & Tissues
Cells & Tissues are the building blocks for human organs. Learn about the structure and function of cells and tissues. See more »
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featured articles
How Your Lungs Work
You breathe in and out anywhere from 15 to 25 times per minute without even thinking about it -- it just happens naturally. Learn all about your lungs, various conditions and diseases, and what makes the breath of life so crucial.
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videos: anatomy
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How Blood Works
When you cut yourself accidentally, do you ever wonder what makes up this thing we call blood? It's pretty amazing stuff, considering how it wards off infections while supplying nutrients to every cell in the human body.
Where's the best place to take a bullet if you get shot?
Getting shot is not something we want to happen, but if it does, where is the best place to take a bullet? Find out what the experts think.
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