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A decrease in intrapulmonary pressure to...

A decrease in intrapulmonary pressure to less than atmospheric pressure causes

A

inspiration

B

expiration

C

emphysema

D

infarction

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The correct Answer is:
A
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Explore conceptually related problems

What happened when the intrapulmonary pressure is less than atmospheric pressure ?

Assertion :- Inspiration can occur if intra pulmonary pressure is less than the atmospheric pressure. Reason :- Inspiration is initiated by the relaxation of diaphragm and external intercostal muscle.

What is atmospheric pressure?

Read the following statement (A - D). (A) The movement of air into and out of the lungs is carried out by creating a pressure gradient between the lungs and atmosphere. (B) Inspiration can occur if the pressure within the lungs is more than the atmospheric pressure. (C) Expiration takes place when the intrapulmonary pressure is lesser than the atmospheric pressure. (D) The diaphragm and a specialized set of intercostal muscles in between the ribs help in the generation of such pressure gradients for breathing. How many of the following statements are correct?

Asertiion : Inspirations occurs when there is a negative pressure in the lungs with respect to the atmospheric pressure. Reason : During inspiration, a decrease in pulmonary volume increases the intre-pulmonary pressure than atmospheric pressure which forces the air from outside to moe into the lungs.

The unit atmospheric pressure is:

Fill in the blanks : Breathing involves two stages. ...1... dunng vyhlc atmospheric airs drawn in and ...2... explratxon by which alveolar air is relesed out. b. The movement of air Into and out of the lungs is carried out by ...3... gradient between the lungs and the atmosphere. c. Inspiration can occur if the pressure within lungs is ...4... than the atmosphere pressure i.e., there is a ...5...pressure in the lungs with respect to atmospheric pressure. d. Expiration takes place when the intra pulmonary pressure is ...6... than atmospheric pressure.

NTA MOCK TESTS-NTA NEET SET 55-BIOLOGY
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