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Which of the following is the muscle action that results in exhalation and causes the air pressure inside the lungs to be higher than outside the chest cavity?
a) Contraction of internal intercostals
b) Relaxation of the diaphragm
c) Contraction of the diaphragm
d) Relaxation of the external intercostals
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Which of the following is the muscle action that results in exhalation and causes the air pressure i...
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