Intra-pulmonary pressure (also known as intra- alveolar pressure) is the pressure inside the air passages and alveoli of the lungs. It is compared to atmospheric pressure to determine the direction of airflow during breathing. "Intra-" means within, while "Inter-" (as in option A) means between. Interstitial pressure refers to pressure in the tissue spaces, not the air spaces within the lungs. Alveolar pressure specifically refers to the pressure within the alveoli, which is essentially the same as intrapulmonary pressure, but "Intra-pulmonary pressure" is often used as a general term for pressure within the lungs' air spaces.
Pressure within the lungs is called
Asked in WBCS Main Paper 4 2023 · Topic: Respiratory System (Pleural Membranes and Intrapleural Pressure)
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