The respiratory system. - Chicago : World Book, Inc., c2007. - 48 p. : ill. ; 27 cm. - World Book's human body works. .

Includes bibliographical references and index.

In, out, in, out -- The respiratory system -- Nose and throat -- Looking at the lungs -- Breathing in -- Breathing out -- Controlling respiration -- Lung defenses -- Breathing faster and slower -- Making noises -- Absorbing area -- Gas exchange -- Gases in the blood -- Cellular respiration -- Energy factories -- Lung problems -- Problems caused by the environment -- Improving the lungs -- Breathing up high -- Underwater -- Healthy lungs.

ISBN: 0716644282 9780716644286

LCCN: 2006004691

Subjects--Topical Terms:
Respiratory organs.

Dewey Class. No.: 612.2