A. Rib cage is raised up
B. Diaphragm contracts and becomes dome shaped
C. Inter-coastal muscle contracts
D. Volume of the thoracic cavity increases.
Correct Answer: Option B
B. Diaphragm contracts and becomes dome shaped
A. Rib cage is raised up
B. Diaphragm contracts and becomes dome shaped
C. Inter-coastal muscle contracts
D. Volume of the thoracic cavity increases.
Correct Answer: Option B
B. Diaphragm contracts and becomes dome shaped
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