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
FEATURED: HUMAN BODY
How much do you know about the human body?

As seen on the Discovery Health series Body Invaders, Dr. Cohen shows how smoking affects the air sacs of the lungs.

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HEALTH: HUMAN BODY
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