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Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. This negative pressure is achieved when
Intrapulmonary pressure is less than the atmopheric pressure
Intrapulmonary pressure is greater than the atmospheric pressure
Intrapulmonary pressure is equal to the atmospheric pressure
Intrapleural pressure becomes more than the intra-alveolar pressure
Answers (1)
The correct answer is option 1 which is Intrapulmonary pressure is less than the atmospheric pressure. Inspiration is the process of drawing air into the lungs, which occurs when the intrapulmonary pressure (pressure inside the lungs) becomes lower than the atmospheric pressure. This pressure difference creates a negative pressure gradient, allowing air to flow into the lungs. Hence, the correct answer is option 1.
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