The effect of the contraction of the muscles of the diaphram is that
BIOLOGY
WAEC 2021
The effect of the contraction of the muscles of the diaphram is that
- A. he volume of the thoracic cavity increases
- B. more carbon dioxide is expelled through the nostrils
- C. the rib cage is drawn inwards
- D. the intercostal muscle becomes relaxed
Correct Answer: A. he volume of the thoracic cavity increases
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