PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They slow heartbeat.
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sympathetic nerves
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parasympathetic nerves
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate. Such factors as stress, caffeine, and excitement may temporarily accelerate your heart rate, while meditating or taking slow, deep breaths may help to slow your heart rate.
Detailed explanation-2: -Your vagus nerve-which goes from your brainstem to your belly-plays a major role in your parasympathetic nervous system, which controls a number of things in your body, including heart rate.
Detailed explanation-3: -Parasympathetic activation (vagus nerve) exerts an inhibitory action on the heart: it slows conduction from the sinus node, leading to bradycardia, and reduces conduction via the atrioventricular node.
There is 1 question to complete.