Which answer places the following events in proper order for pulmonary ventilation?a: Thoracic cavity volume changes.b: Brainstem nuclei stimulate skeletal muscles to contract.c: Air flows down its pressure gradient.d: Dimensional changes in the thorax lead to pressure changes within the lung.
A. a, c, d, b
B. c, a, d, b
C. b, a, d, c
D. b, d, c, a
E. d, c, b, a
Answer: C
Anatomy & Physiology
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