Respuesta :
Increase in arterial blood pressure will result in an increased rate of impulse firing.
When baroreceptors in your carotid arteries detect elevated blood pressure, it activates the baroreceptors resulting in increased firing of action potentials with the rapidity proportional to the degree of mechanical stretch.
Stretching of the baroreceptors as a result of increased blood pressure causes an increase in the activity of the vagal nerve by projection to the nucleus ambiguus. It also causes inhibition of the sympathetic outflow and ultimately leads to decreased heart rate and blood pressure.
Baroreceptor activity increases with a rise in arterial BP but declines over time if the acute hypertension is maintained.
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