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?

Laurie, 41, had a heart attack. Her age and medical history make her a high risk in the delivery room. See her give birth on Birth Day Live.

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How the Digestive System Works

What happens to your lunch after you eat it? As you read this, your digestive system is hard at work, taking it on a wild ride through your body.

How Nerves Work

You touch a hot object and immediately drop it. It happens so quickly you don't even think about it. How does this happen? Your nervous system coordinated everything.

HEALTH: HUMAN BODY
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