Question
When the lungs expand during inhalation, the _____.
a. rib muscles and diaphragm relax, increasing the pressure in the lungs
b. pressure inside the chest cavity becomes lower than the atmospheric pressure
c. pressure inside the chest cavity becomes greater than the atmospheric pressure
a. rib muscles and diaphragm relax, increasing the pressure in the lungs
b. pressure inside the chest cavity becomes lower than the atmospheric pressure
c. pressure inside the chest cavity becomes greater than the atmospheric pressure
Answers
b. pressure inside the chest cavity becomes lower than the atmospheric pressure
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