Lung Anatomy
Your lungs take air in to give your body oxygen, which the body needs to work. Your lungs, like all the tissues in your body, are made up of billions of tiny specialized cells. Old lung cells die and are replaced by new, identical lung cells. This natural process helps ensure healthy lungs.

Online Medical Reviewer:
Alan J Blaivas DO
Online Medical Reviewer:
Daphne Pierce-Smith RN MSN CCRC
Online Medical Reviewer:
Marianne Fraser MSN RN
Date Last Reviewed:
12/1/2019
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