upward and downward movement of diphagram occurs consecutively ?
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As we inhale air, the lungs expand thus pushing the diaphragm down to create more space in the chest cavity for the lungs.
while we exhale the air as amount of air decreases, the diaphragm is pushed upwards.
hope u are satisfied with this answer;-)
no
ummm what else do u need to know???
u can report it if u are not satisfied.....
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