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Questions and Answers
What is the effect of the contraction of the diaphragm on the thoracic cavity dimensions?
What is the effect of the contraction of the diaphragm on the thoracic cavity dimensions?
- It has no effect on the thoracic cavity dimensions
- It increases the anteroposterior dimension of the thoracic cavity
- It decreases the vertical dimension of the thoracic cavity
- It increases the vertical dimension of the thoracic cavity (correct)
What is the primary function of the contraction of the chest muscles in the respiratory process?
What is the primary function of the contraction of the chest muscles in the respiratory process?
- To decrease the lung volume
- To stabilize the ribcage
- To facilitate exhalation
- To increase the lung volume (correct)
What happens to the thoracic cavity when the diaphragm contracts and descends towards the abdominal cavity?
What happens to the thoracic cavity when the diaphragm contracts and descends towards the abdominal cavity?
- It shifts to the right side
- It remains the same
- It decreases in volume
- It increases in volume (correct)
What is the effect of the contraction of the diaphragm on inhalation?
What is the effect of the contraction of the diaphragm on inhalation?
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What happens to the ribcage when the chest muscles contract?
What happens to the ribcage when the chest muscles contract?
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What is the result of the expansion of the ribcage during inhalation?
What is the result of the expansion of the ribcage during inhalation?
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What is the primary role of the diaphragm in the respiratory process?
What is the primary role of the diaphragm in the respiratory process?
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