Like HowStuffWorks on Facebook!

Health | Human Body | Body Parts

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


Is what's in my belly button really lint?

 Is what's in my belly button really lint?

Scientists have taken on the job of evaluating the debris found in the human belly button. Learn more about belly button lint at HowStuffWorks. See more »

Do ears really grow your entire life?

 Do ears really grow your entire life?

Humans essentially stop growing after puberty, but do their ears keep right on growing? Find out whether ear growth never stops at HowStuffWorks. See more »

10 Grossest Things in Your Body Right Now

 10 Grossest Things in Your Body Right Now

Human bodies are wonderlands of unpleasantness. Find out about the 10 grossest things your body is harboring right this minute. See more »

Why do we have fingerprints?

 Why do we have fingerprints?

Why do we have fingerprints? Identification isn't their only purpose. Learn about the reasons for fingerprints. See more »

Why do men have nipples?

 Why do men have nipples?

Why do men have nipples? Did they ever serve a purpose? Find out why men have nipples at HowStuffWorks. See more »

Facts About Organ Donation

 Facts About Organ Donation

Organ donation can help save lives. Get fast facts here about organ donation and how you can help. See more »

Are you body smart?

 Are you body smart?

Are you body smart? Take this quiz adapted from Dr. Mehmet Oz and Dr. Michael Roizen to find out how much you know about your body. See more »

Tale of the Tape: The Male Embarrassment Quiz

 Tale of the Tape: The Male Embarrassment Quiz

Male embarrassment can occur with numerous physical traits. Learn about male bodies and male embarrassment with this quiz. See more »

5 Things Men Are Most Embarrassed About Their Bodies

 5 Things Men Are Most Embarrassed About Their Bodies

Both women and men find certain things embarrassing about their bodies. See five of the most embarrassing things about men's bodies here to learn more. See more »

Girly Body Parts: Why do you embarrass me so?

 Girly Body Parts: Why do you embarrass me so?

Body parts can often be embarrassing, especially if you are a woman. See how much you know about embarrassing body parts with this quiz. See more »