Multiple Choice
The primary effect of increased PO2 in the lungs is to cause which the ventilation- perfusion ratio back to a normal level.
A) vasoconstriction : decreases
B) vasoconstriction : increases
C) bronchodilation : increases
D) bronchoconstriction : decreases
E) vasodilation : decreases
Correct Answer:

Verified
Correct Answer:
Verified
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