During inhalation, the intercostal muscles are _________ while the diaphragm is __________
a) Contracting, contracting
b) Relaxing, relaxing
c) Contracting, relaxing
d) Relaxing, contracting
Answer: A
During inhalation, the intercostal muscles are _________ while the diaphragm is __________
a) Contracting, contracting
b) Relaxing, relaxing
c) Contracting, relaxing
d) Relaxing, contracting
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