Questions
Which of the following occurs during exhalation?
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By Expert Faculty of Sri Chaitanya
a
The diaphragm becomes arched upwards
b
Ribs and sternum are raised up
c
External intercostal muscles contract
d
Negative pressure in the lungs with respect to atmospheric pressure
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Correct option is A
During exhalation, the diaphragm relaxes and becomes arched upwards. Contraction of external costal muscles, raising of the ribs and sternum occur during inspiration. There is a negative pressure in the lungs with respect to atmospheric pressure during inspiration.Similar Questions
During exhalation, the diaphragm is
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