When blood pressure increases, a number of events occur that return blood pressure to normal. Which of the following is NOT one of the events that occurs after an increase in blood pressure?
A) Baroreceptors in the aorta and internal carotid arteries are stimulated.
B) Increased action potential frequency to the cardioregulatory center of the brain occurs.
C) Increased sympathetic stimulation of the heart occurs.
D) Heart rate and stroke volume decrease.
E) Blood pressure decreases.

Question

Quizplus · Accepted Answer

Increased sympathetic stimulation of the heart would actually increase heart rate and force of contraction, which would raise blood pressure further, not decrease it. The other options describe mechanisms that help lower blood pressure back to normal.

When Blood Pressure Increases, a Number of Events Occur That