1
Question
In which vascular bed does hypoxia cause vasoconstriction?
In which vascular bed does hypoxia cause vasoconstriction?
Open in App
Solution
The correct option is B Pulmonary
Pulmonary blood flow is controlled locally by the PO2 of alveolar air. Hypoxia causes pulmonary vasoconstriction and thereby shunts blood away from unventilated areas of the lung. In the coronary circulation, hypoxemia causes vasodilation. The cerebral and skin circulations are not controlled directly by PO2.
Pulmonary blood flow is controlled locally by the PO2 of alveolar air. Hypoxia causes pulmonary vasoconstriction and thereby shunts blood away from unventilated areas of the lung. In the coronary circulation, hypoxemia causes vasodilation. The cerebral and skin circulations are not controlled directly by PO2.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
