Includes bibliographical references (page 31) and index.
Contents:
Breathing in and out -- The trip to the lungs -- Breathing out -- Built-in protections -- A system in action.
Summary:
The human body is simply amazing. Organs keep it running. Bones keep it standing. And muscles let it play. Discover how the human body works& and learn a few gross facts too!
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.