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Expiration

Give suitable...

Question

Give suitable explanations for the following:
Why does gaseous exchange continue in the lungs even during expiration?

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Solution

Even after exhalation, a small volume of air (about 1200ml ) remains in the lungs. This is called the residual volume of air and it circulates through the alveolar capillaries, thus helping in the gaseous exchange of air even during expiration.

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Similar questions

Q. Give suitable explanations for the following:
(a) Breathing through the nose is said to be healthier than through the mouth.
(b) Why does gaseous exchange continue in the lungs even during expiration?
(c) Why does a person feel breathlessness at higher altitudes?
(d) Why do you shiver and why do your teeth chatter when it is very cold in winter?

Q. Short / long answer type questions.
Gaseous exchanges continue in lungs without interruption even during expiration. Explain.

Q. State whether the following statements are true or false.
Gas exchanges continue uninterrupted in lungs even after a forceful expiration.

What happens during gaseous exchange in the lungs?

Q. Gas exchanges continue uninterrupted in .......... even after a forceful expiration.

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