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Earn 100

Which muscles help us to increase the strength of expiration?
(a)Cardiac muscles
(b)Abdominal muscles
(c)Internal intercostal muscles
(d)Both (B) and (C)

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Important Questions on Breathing and Exchange of Gases
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The breathing rate of a normal healthy man is

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What is the value of tidal volume in a normal healthy man?

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What is the main site of human respiratory system where exchange of gases occurs?

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Partial pressure for oxygen and is represented as

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What will be the and in atmospheric air as compared to alveoli respectively?

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What is the value of in atmospheric air, alveoli and tissues respectively?

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binds with haemoglobin of RBC to form

EASY
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The volume of air that remains in the lungs after a normal expiration is:
