Hypoxic pulmonary vasoconstriction due to
Correct Answer: Reversible pulmonary vasoconstriction due to hypoxia
Description: Hypoxic pulmonary vasoconstriction (HPV), also known as the Euler-Liljestrand mechanism, is a physiological phenomenon in which small pulmonary aeries constrict in the presence of alveolar hypoxia (low oxygen levels). Ref Harrison20th edition pg 2334
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