If digital (finger press) pressure is exerted over the carotid sinus,you would expect
A)the sympathetics to fire,thereby increasing blood pressure.
B)that the medulla oblongata will interpret the signal as high blood pressure and therefore fire the vagus nerve.
C)no effect,because the baroreceptors are "crushed."
D)reflex tachycardia.

Question

Quizplus · Accepted Answer

Exerting digital pressure over the carotid sinus stimulates the baroreceptors located in the walls of the carotid sinus. The sensory nerve fibers of these baroreceptors travel to the medulla oblongata, which then interprets the signal as high blood pressure and triggers the parasympathetic nervous system (vagus nerve) to slow down the heart rate and decrease blood pressure.

If Digital (Finger Press) Pressure Is Exerted Over the Carotid