MUSCLE
CARDIAC MUSCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase rate of SA node discharge
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decrease rate of SA node discharge
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decrease excitability of the AV junction fibers
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increase excitability of the AV junction fibers
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Detailed explanation-1: -Vagus nerve stimulation may also shorten the recovery time after a seizure. People who’ve had vagus nerve stimulation to treat epilepsy may also experience improvements in mood and quality of life. Research is still mixed on the benefits of implanted vagus nerve stimulation for the treatment of depression.
Detailed explanation-2: -The Cardiac Action Potential The right vagus nerve supplies the SA node and slows its pacemaker; the left vagus innervates the AV node and slows its conduction of the cardiac impulse to the bundle of His. The vagus fibers are preganglionic; they make synapses with parasympathetic neurons within the heart.
Detailed explanation-3: -VNS therapy aims to reduce the number, length, and severity of seizures. For some people, their seizures become much less frequent, for some it may reduce their seizures a little, and for others it has no effect. VNS therapy may reduce the length or intensity of seizures but this does not happen for everyone.