(B) Inspiration occurs if the pressure within the lungs (intra-pulmonary pressure) is less than the atmospheric pressure,i.e.,there is a negative pres

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Inspiration occurs when intra-pulmonary pressure is less than atmospheric pressure.

(B) Inspiration occurs if the pressure within the lungs (intra-pulmonary pressure) is less than the atmospheric pressure,i.e.,there is a negative pressure in the lungs with respect to atmospheric pressure.Similarly,expiration takes place when the intra-pulmonary pressure is higher than the atmospheric pressure.

Class 11 Biology Breathing and Exchange of Gases Mechanism of Breathing

Medium

When do inspiration and expiration take place?

A
Inspiration occurs when intra-pulmonary pressure is higher than atmospheric pressure.
B
Inspiration occurs when intra-pulmonary pressure is less than atmospheric pressure.
C
Expiration occurs when intra-pulmonary pressure is less than atmospheric pressure.
D
Expiration occurs when intra-pulmonary pressure is equal to atmospheric pressure.