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14 votes
Negative feedback: If blood pressure is high, the blood vessels should

A. dilate (open up more)
B. constrict (get tighter)​

User Pholpar
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3.9k points

2 Answers

8 votes
Dilate.. constrict would be for the opposite
User Branimir
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4.9k points
11 votes
i believe blood vessels constrict
User Avy
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