Inspiration occurs when intra-pulmonary pressure is
Higher than atmospheric pressure
Lower than atmospheric pressure
Equal to atmospheric pressure
Zero compared to atmospheric pressure
As we learn
Mechanism of Inspiration -
The overall increase in the thoracic volume causes an increase in pulmonary volume, which decreases the intra-pulmonary pressure to less than the atmospheric pressure which forces the air from outside to move into the lungs, i.e., inspiration.
- wherein
Correct option is 4