What of the following primarily controls the phenomenon of hypoxic pulmonary vasoconstriction? A) central chemoreceptors B) P_AO₂ C) PaO₂ D) baroreceptors

Question

Quizplus · Accepted Answer

Hypoxic pulmonary vasoconstriction is primarily controlled by the alveolar partial pressure of oxygen (P_AO₂), which is the oxygen level in the alveoli. When P_AO₂ decreases, it triggers vasoconstriction in the pulmonary circulation to redirect blood flow to better-ventilated areas of the lung.

What of the Following Primarily Controls the Phenomenon of Hypoxic