Which of the following variation(s) control(s) blood flow to the heart? 1. Local metabolic control mechanisms 2. Local myogenic control mechanisms 3. Central neural innervation
a. 1, 2, and 3
b. 2 and 3 only
c. 1 only
d. 1 and 3 only
ANS: B
The vasculature of the heart shows a strong response to both myogenic and metabolic factors.
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