Body Parts

Body Parts work together to perform different functions required for life. Learn how your internal organs operate in this section.

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Do your ears hang low? Do they wiggle to and fro? Could it be because your ears keep right on growing long after the rest of you has stopped?

By Laurie L. Dove

Human bodies are wonderlands of grossness. You might be shocked to know some of the nastiest things your body is harboring right this minute.

By Maria Trimarchi

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.

By Robert Lamb

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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?

By Cristen Conger

Every guy is self-conscious about something, and hours are often spent wondering how he measures up to the competition. But what would-be body flaws are the most embarrassing?

By Kevin P. Allen

Beauty may be in the eye of the beholder, but women are definitely held to higher standards than men. Could this be why so many of us are embarrassed of our bodies?

By Terri Briseno

No one is perfect, but sometimes, we go above and beyond to hide our flaws. Is your No. 1 insecurity on our list?

By Sara Elliott

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Your pituitary gland manages most hormone production. Learn about the pituitary gland in this article.

By HowStuffWorks.com Contributors

The sphenoid sinuses are located behind your eyes. Learn more about what sinus is located behind your eyes from this article.

By HowStuffWorks.com Contributors

The maxillary sinuses are located right under your eyes and above the roots of your upper teeth. Learn more about the location of your maxillary sinuses from this article.

By HowStuffWorks.com Contributors

Think it's a hassle when your car breaks down? Try finding a spare organ when your body gives out. Thanks to years of research, scientists are now amassing a "body shop" of sorts, dealing not in tires or mufflers, but in bladders, bones and breasts.

By Molly Edmonds

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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.

By Cristen Conger

Have you ever wondered what your body looks like on the inside? Take a tour of your major bodily organs and learn about unusual organ conditions with these pictures.

The human body is fantastic biological specimen. Learn more about the human body with these revealing and insightful facts.

By DiscoveryHealth.com writers

Vestigial organs are like the contents of your junk drawer: an assortment of objects that once had a purpose or might come in handy. What can these evolutionary mementos tell us?

By Molly Edmonds

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It happens more often than you may think. Sometimes a baby is born with organs outside of his or her body and has a slim chance of survival. What causes this?

By Jacob Silverman

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.

By Jacob Silverman

Does the appendix serve any purpose in the human body? Scientists are divided on the issue -- learn why.

By Amy Hunter

Despite what people say, the tongue isn't your body's strongest muscle. But you do depend on it for eating, tasting and speaking.

By Sarah Dowdey

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Getting shot is not something anybody hopes will happen, but if it does, where is the best place to take a bullet? Find out what the experts think.

By Josh Clark & Francisco Guzman

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?

By the Editors of Publications International, Ltd.

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.

By the Editors of Publications International, Ltd.

Having a limb fall asleep can range from annoying to downright painful. See what's going on inside your arm or leg when it falls asleep.

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