during inspiration, which of the following does NOT occur?
a)the rib cage rises
b)the diaphragm moves down
c)air moves into lungs
d)air pressure in the thoracic cavity increases
e)the intercostal muscles of the rib cage contract
a)the rib cage rises
b)the diaphragm moves down
c)air moves into lungs
d)air pressure in the thoracic cavity increases
e)the intercostal muscles of the rib cage contract
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D