WHAT'S INSIDE: HUMAN BODY

The human body is an amazing structure made up of many fascinating parts and systems. Learn about the human body and how its systems work together.
  • Body Parts
  • Body Systems
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How much do you know about the human body?
FPO

Does the appendix serve any purpose in the human body? Scientists are divided on the issue -- learn why.

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Certain scientists have taken on the unappealing job of evaluating the debris that hangs out in the human belly button. What's hiding in your belly button?

How Your Kidneys Work

The kidneys spend 24 hours a day, seven days a week filtering gallons and gallons of blood. But that's not all these little bean-shaped organs accomplish in a day.

HEALTH: HUMAN BODY
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