Type of blood flow seen in the apex of the lung is
Correct Answer: Intermittent flow, P(ALV) < Ppc during systole
Description: Zone 2: Intermittent blood flow only during the peaks of pulmonary aerial pressure (Ppc) because the systolic pressure is then greater than the alveolar air pressure (PALV), but the diastolic pressure is less than the alveolar air pressure.
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Physiology
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