The function of the respiratory system is to bring oxygen to all the parts of your body. Learn what the function of the respiratory system is in this article.
WHAT'S INSIDE: HUMAN BODY
- Body Parts
- Body Systems
Vagina dentata is the stuff of legends — but is it possible for a woman to have teeth in her vagina? The answer might surprise you.
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?