ANATOMY
CHEST AND CARDIOVASCULAR
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What can slow down or speed up the pacing of the heart
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atrial fibers
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neurotransmitters
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minerals
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None of the above
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Explanation:
Detailed explanation-1: -tricular receptors results in a decrease in heart rate and fall in blood pressure; and stimulation of atrial receptors results in an increase in heart rate and an increase in urine flow.
Detailed explanation-2: -It was later discovered the heart contains cells that synthesize and release catecholamines (norepinephrine, epinephrine and dopamine), which are neurotransmitters once thought to be produced only by neurons in the brain and ganglia.
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