Blood return to the heart through the veins is aided by
A)a blood pressure difference from venules to the right atrium.
B)skeletal muscle and respiratory pumps.
C)total blood volume in circulation.
D)All apply.

Question

Quizplus · Accepted Answer

Blood return to the heart through the veins is aided by multiple factors, including a blood pressure difference from venules to the right atrium, skeletal muscle and respiratory pumps, and the total blood volume in circulation. Therefore, all of the choices apply.

Blood Return to the Heart Through the Veins Is Aided