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Chapter 25

Respiratory System

QuestionAnswer
upper respiratory tract nose, mouth, larynx, trachea
lower respiratory tract lungs, bronchi, alveoli
inspiration muscle contraction, lifts ribs, increases lung volume, 21% oxygen, 0% carbon dioxide
expiration muscles relax, decreases lung volume, air passively flows out, 16% oxygen, 4.5% oxygen
pulmon
Created by: TaylorRabalais
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