Did you know that sperm is the smallest human cell, or that some people are born with two working uteruses? Here are 11 surprising facts about the reproductive system.

The reproductive system refers to the organs involved in producing children. Learn more about the male and female reproductive system here.

Check out this diagram of the female reproductive system, and then read on for the full definitions of everything you’ve got going on ~down there~. 01 Anus 02 Cervix 03 ...

Leonardo da Vinci's 500-year-old illustrations of human anatomy are uncannily accurate with just one major exception: the female reproductive system.