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?

Your appendix is really a pretty mysterious organ. Find out why you have an organ that's not necessary to your survival.

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Lungs are incredible organs. Learn all about them in these videos. Be careful -- they might take your breath away.

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Millions of people have refractive vision problems -- when the eyes get blurry or can't focus on an object. Learn about four major types of refractive vision problems.

HEALTH: HUMAN BODY

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