What does a sudden increase in pressure within the carotid sinus lead to
A)increased sympathetic nerve activity and increased parasympathetic nerve activity
B)increased sympathetic nerve activity and decreased parasympathetic nerve activity
C)decreased sympathetic nerve activity and increased parasympathetic nerve activity
D)decreased sympathetic nerve activity and decreased parasympathetic nerve activity

Question

Quizplus · Accepted Answer

A sudden increase in pressure within the carotid sinus activates baroreceptors, which in turn decrease sympathetic nerve activity and increase parasympathetic nerve activity. This helps lower blood pressure by reducing heart rate and the force of cardiac contractions.

What Does a Sudden Increase in Pressure Within the Carotid