MEDICAL
LUNGS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When air pressure inside the lungs is less than the air pressure in the atmosphere
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Air moves out of the lungs
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Air move into the lungs
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Air moves into the lungs (inspiration) when the pressure inside the lungs is less than the air pressure in the atmosphere. Q. Assertion :Inspiration occurs when there is a negative pressure in the lungs with respect to the atmospheric pressure.
Detailed explanation-2: -When the air pressure within the alveolar spaces falls below atmospheric pressure, air enters the lungs (inspiration), provided the larynx is open; when the air pressure within the alveoli exceeds atmospheric pressure, air is blown from the lungs (expiration).
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