Which respiratory-associated muscles would contract if you were to blow up a balloon?
A) External intercostals would contract, and the diaphragm would relax.
B) Diaphragm would contract; external intercostals would relax.
C) Internal intercostals and abdominal muscles would contract.
D) None of the listed responses is correct.
C
Explanation:
A) The diaphragm contracts when you blow up a balloon.
B) The external intercostals would contract to when you blow up a balloon.
D) One of the listed answers is correct.
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