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membrane 8l me E) capilary endothelial cells The reason to my answer is 22) Sele

ID: 133137 • Letter: M

Question

membrane 8l me E) capilary endothelial cells The reason to my answer is 22) Select the best statement/s concerning ventilation-perfusion coupling A) involves vasoconstriction in poorly ventilated areas of the lungs to redirect well-ventilated areas of the lungs B) is a response to localized hypoxia. C) is most associated with pulmonary, not bronchial, blood vessels. D) A and B are correct. E) A, B and C are correct The reason to my answer is 23) In the body, the steps of gas exchange, or respiration include

Explanation / Answer

Solution :

Answer is option E) a, b and c are correct

Reason : Constriction occurs in the pulmonary blood vessels in the lungs in response to localized hypoxia (low oxygen levels), this vasoconstriction in response to hypoxia diverts pulmonary blood from poorly ventilated areas of the lungs to well-ventilated regions for more efficient gas exchange while the blood vessels in the rest of the body dilate to increase the blood flow.