Your Body Battles a Skinned Knee

By: Vicki Cobb, 

Age: 4+  | Published by: Andrew N. Harris|Dennis Kunkel

ISBN: 9780822568148

Ouch! You know that a skinned knee hurts. But did you know that it's the start of a battle? Your body has to work quickly to protect you from a germ invasion. Nerve cells sound an alarm that you're hurt. Blood cells rush in to fight germs that come in through the scrape. and skin cells make brand-new skin for your knee. Before you know it, your cells have won the battle and you're as good as new.Get a close look at this body battle with comic illustrations and ground-breaking photomicrographs. the photomicrographs magnify the actual cellular processes tens of thousands of times, offering you a front-row seat for all the action.