Question

which of the following is increased when sympathetic stimulation to the heart increases? multiple choice venous return stroke volume total peripheral resistance end - diastolic volume

Explanation:

When sympathetic stimulation to the heart increases, it causes the heart to contract more forcefully. This leads to an increase in stroke volume, the amount of blood pumped out of the heart with each beat. Venous return is affected by factors like skeletal - muscle pumps and respiratory activity more directly related to changes in pressure gradients in the circulatory system rather than just sympathetic stimulation to the heart. Total peripheral resistance is mainly regulated by the constriction and dilation of arterioles. End - diastolic volume is influenced by factors such as filling time and venous return, not primarily by sympathetic stimulation to the heart in isolation.

Answer:

B. Stroke volume