Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section.
Organ Function Quiz
Whether you're an amateur anatomy buff or a full-fledged medical professional, test your knowledge with this organ function quiz from HowStuffWorks. See more »
Is it possible to swallow your tongue?
Your tongue is attached pretty well to the floor of your mouth. Learn whether it is really possible to swallow your tongue at HowStuffWorks. See more »
Why doesn’t your tongue get infected when you bite it?
Biting your tongue sucks, but it could be worse. Learn why your tongue typically doesn't get infected when you bite it at HowStuffWorks. See more »
Why don't women have Adam's apples?
Ever wonder why women don't have Adam's apples? The answer isn't as simple as you might think. Learn more about Adam's apples at HowStuffWorks. See more »
Why are some people more ticklish than others?
Find out why some people are more ticklish than others at HowStuffWorks. See more »
Have doctors ever found teeth in a vagina?
Vagina teeth are the stuff of legends — but is it possible for a woman to have teeth in her vagina? The answer might surprise you. See more »
Is your foot really the same length as your arm from wrist to elbow?
Is your foot really the same length as your arm from wrist to elbow? Find out with a little help from Da Vinci at HowStuffWorks. See more »
Why do we have 10 fingers and 10 toes?
When a child is born, the first thing a parent checks is how many fingers and toes he or she has. Learn why we have 10 of each at HowStuffWorks. See more »
What's earwax made of?
Humans sure make a lot of earwax, but what's it made of? Learn what's in your earwax at HowStuffWorks. See more »
Why do elbows itch?
Itchy elbows can be really annoying. Learn what causes your elbows to itch at HowStuffWorks. See more »
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