1)In the regulation of heart rate, which of the following is the proper stimulus? Group of answer choices -Change in mean arterial pressure -mean arterial pressure -change in heart rate -heart rate   2) If a stimulus is a decrease in mean arterial pressure (MAP), what must be the response if using the baroreceptor reflex? Group of answer choices -Increase in heart rate -Decrease in heart rate -Increase in MAP -Decrease in MAP   3)The brainstem acts as the integrating center for the baroreceptor and chemoreceptor reflexes. Group of answer choices True False

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