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?

What's earwax made of?

As anyone who's ever used a cotton swab knows, human ears generate a fair amount of earwax. But what exactly is the stuff, and do you need to make a point of clearing it out every so often?

11-20 of 43
11-20 of 43
  • Most Popular