For inspiration of air, which of the following happens first?

A) diaphragm descends and rib cage rises
B) intrapulmonary pressure drops
C) air (gases) flows into lungs
D) thoracic cavity volume decreases


A

Anatomy & Physiology

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a. true b. false

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Which of the following is true of arteries compared to other vessels?

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The volume of blood pumped by each ventricle in one heartbeat is known as:

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