PHYSIOLOGY
CENTRAL NERVOUS SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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sympathetic
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somatic
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parasympathetic
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sensory
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Detailed explanation-1: -During rest, sleep, or emotional tranquility, the parasympathetic nervous system predominates and controls the heart rate at a resting rate of 60-75 bpm.
Detailed explanation-2: -The parasympathetic nervous system (PNS) releases the hormone acetylcholine to slow the heart rate.
Detailed explanation-3: -The parasympathetic nervous system is responsible for the body’s rest and digestion response when the body is relaxed, resting, or feeding. It basically undoes the work of sympathetic division after a stressful situation. The parasympathetic nervous system decreases respiration and heart rate and increases digestion.
Detailed explanation-4: -Given the importance of the vagus nerve in parasympathetic innervation of the heart, vagal stimulation becomes an obvious potential target.