Which muscles undergo contraction during norm | vedclass

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Question

(D) Normal expiration is a passive process in humans. During normal breathing,the diaphragm and external intercostal muscles $(EICM)$ relax,which caus

Vedclass · Accepted Answer

No muscles contract during normal expiration

Vedclass · Answer

(D) Normal expiration is a passive process in humans. During normal breathing,the diaphragm and external intercostal muscles $(EICM)$ relax,which causes the thoracic volume to decrease and leads to the expulsion of air from the lungs. No active muscle contraction is required for normal expiration. Therefore,the correct answer is that no muscles contract during normal expiration.

Which muscles undergo contraction during normal expiration?

Similar Questions

Assertion: Inspiration occurs due to muscular relaxation.
Reason: During inspiration, the diaphragm and external intercostal muscles contract simultaneously.

The most important function of the diaphragm in mammals is:

State whether the given statements are true or false.
$I.$ Ventilation in humans is an active process.
$II.$ Diaphragm helps in generating the pressure gradient in the lungs.
Choose the correct option.

The normal shape of the diaphragm is

$A$ healthy human breathes $........$ times per minute.

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