Questions
During exhalation, the diaphragm is
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a
relaxed and flat
b
contracted and flat
c
relaxed and arched downward
d
relaxed and arched upward
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Correct option is D
During inhalation the diaphragm contracts and becomes flat. This increases the volume of the thoracic cavity in the vertical axis. During exhalation, the diaphragm relaxes and arches upward which decreases the volume of the thoracic cavity in the vertical axis.
Similar Questions
Which of the following occurs during exhalation?
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