BODY PARTS

Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section.
How much do you know about the human body?
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Anatomy 101: Human Body Quiz

You remember a little ditty about the thigh bone being connected to the hip bone, which was in turn connected to the backbone. But what else do you remember about human anatomy? The answers to this quiz are all inside of you -- literally.

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  • Why are some people born with a reversal of organs?

    Why are some people born with a reversal of organs?

    Most people's organs follow the same basic layout -- heart on the left, appendix on the right and stomach in the middle. But in about 1 in 10,000 births, organs end up on the opposite side. See more »

  • Why do elbows itch?

    Why do elbows itch?

    If you have chronically itchy elbows, you're probably irritated in more than one way, as elbows aren't easy to scratch. For what it's worth, you're also in good company: A certain Civil War general shared your itchy condition. See more »

  • Why do humans have body hair?

    Why do humans have body hair?

    By waxing, shaving, plucking and shearing, we manage to keep unwanted hairs at bay. But considering how much you shell out for new razors and your trips to the salon, it's a wonder that we bend over backward to groom a bunch of dead cells. See more »

  • Why do men have nipples?

    Why do men have nipples?

    During early pregnancy, both male and female human embryos develop something called milk lines, ridges that eventually recede into nipples. Why have some species lost this unisex trait, and can human men actually produce milk? See more »

  • Why do we have 10 fingers and 10 toes?

    Why do we have 10 fingers and 10 toes?

    So many notes announcing new babies start, "Everyone's safe and healthy with 10 fingers and 10 toes." But why do most folks have 10 of each? See more »

  • Why do we have fingerprints?

    Why do we have fingerprints?

    If you've ever considered burning them off for various nefarious purposes, you may want to reconsider. Those babies are more than just loopy tools of identification. See more »

  • 13 People with Extra Body Parts

    13 People with Extra Body Parts

    Extra body parts can occur more often than people might think. Doctors call the extra appendages "supernumerary" body parts and these can be found on some famous people in history. See more »

  • 16 Unusual Facts About the Human Body

    16 Unusual Facts About the Human Body

    Our list of 16 unusual facts about the human body will both shock and enlighten. Did you know that everyone has a unique tongue print or that we shed skin cells the same way a dog sheds hair? See more »

  • Are you body smart?

    Are you body smart?

    When it comes to your body, how much do you know? Test your knowledge with this quiz adapted from "YOU: The Owner's Manual", by Dr. Mehmet Oz and Dr. Michael Roizen. See more »

  • Facts About Organ Donation

    Facts About Organ Donation

    Every day in the United States, an average of 18 people die while awaiting organ transplants because of a critical shortage of donors. Get facts about organ donation here. See more »

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