Multiple Choice
Which of the following statements about the muscles of the thorax is incorrect?
A) When the diaphragm contracts, it decreases the volume of the thoracic cavity and expels air from the lungs.
B) The muscles of the thorax assist in respiration.
C) The internal and external intercostal muscles have opposite effects on the ribs.
D) All of the above statements are correct.
Correct Answer:
Verified
Correct Answer:
Verified
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