The increase in cardiac output that occurs during exercise is due to
A)both an increase in mean arterial pressure and a decrease in vascular resistance.
B)a decrease in vascular resistance only.
C)an increase in mean arterial blood pressure only.
D)an increase in heart rate and a decrease in mean arterial blood pressure.

Question

Quizplus · Accepted Answer

The increase in cardiac output during exercise is attributed to both an increase in mean arterial pressure and a decrease in vascular resistance. This combination allows for more blood to be pumped by the heart to meet the increased oxygen and nutrient demands of the body during physical activity.

The Increase in Cardiac Output That Occurs During Exercise Is