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Difference between inspiration and expiration? |
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This occurs within the respiratory system. During inpiration, the intercostal muscles contract, the diaphragm descends, and the rib cage rises. The thoracic cavity volume increases, stretching the lungs, and the intrapulmonary volume increases. This causes the intrapulmonary pressure to drop. Air flows into the lungs until the intrapulmonary pressure equals the atmospheric pressure.
During expiration the intercostal muscles relax, the diaphragm rises, and the rib cage descends. The thoracic cavity volume decreases, causing the the lungs to recoil, and the intrapulmonary volume decreases. This causes the intrapulmonary pressure to rise, and the air flows out of the lungs until the intrapulmonary pressure equals the atmospheric pressure.
First answer by ID1256650143. Last edit by ID1386718465. Question popularity: 1 [recommend question].
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Inspiration vs expiration? Is inspiration equal to expiration? Difficult inspiration or expiration? Action of inspiration and Expiration? Is expiration longer than inspiration?
