When a person rises quickly from a lying position, there is

A) an increase in the frequency of action potentials produced by the baroreceptors.
B) an increase in vasomotor sympathetic stimulation to the blood vessels causing vasoconstriction.
C) reflexive slowing of the heart.
D) an increase of parasympathetic stimulation of the heart.
E) a decrease in heart rate and stroke volume.

Vasomotor Sympathetic

Pertaining to the control of blood vessel diameter by the sympathetic nervous system, affecting blood flow and pressure.

Baroreceptors

Sensory nerve endings located in the walls of blood vessels and the heart that detect changes in blood pressure and help regulate it.

Vasoconstriction

The narrowing of blood vessels, which increases blood pressure by reducing the volume of blood flow.