Privacy Policy

Pick a body function Ankle Sprain Bad Breath Belches and Farts Dandruff Ear Wax Eye Gunk Funnybone Gurgling Stomach Hiccups Pee Poop Scabs & Pus Snot Spit Stinky Pits Vomit Zits Choose a body system The Brain Cardiovascular System Digestive System Endocrine Hair Muscular System Nervous System Respiratory System Sense of Sight Skeletal System Skin Sense of Smell Urinary System DID YOU KNOW that messages from different kinds of nerve cells travel at different speeds? They know how fast to send you a message, from the pace of a slow walk to speeds of several hundred miles per hour!

Copyright © 2000 Discovery Communications Inc.