ANATOMY
LIMB VASCULATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Lung expansion is primarily accomplished by movement of the diaphragm.
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true
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false
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -When you breathe in (inhalation), the diaphragm moves down toward the abdomen, and the rib muscles pull the ribs upward and outward.
Detailed explanation-2: -During inspiration, the diaphragm contracts and the thoracic cavity increases in volume. This decreases the intraalveolar pressure so that air flows into the lungs. Inspiration draws air into the lungs.
There is 1 question to complete.