"Did you know that if all your blood vessels were laid out end-to-end, they would stretch all the way around the world, not just once but twice? Not only that--you are made up of millions of cells, many miles' worth of nerve fiber, and more than 20 feet of intestine. The human body is a truly amazing machine, capable of growth and self-repair. In this book, you can find out all about your insides and how they work."--Provided by publisher.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.