Air is forced out of the lungs during normal expiration due to _________.

A. contraction of the diaphragm
B. elastic recoil of tissues
C. contraction of bronchioles
D. contraction of the external intercostal muscles


Answer: B. elastic recoil of tissues

Anatomy & Physiology

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growth hormone osteocalcin calcitonin leptin

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If a post synaptic cell is stimulated to threshold by temporal summation this implies that ________

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The parasympathetic nervous system has little effect on ____ activity

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