Both lymph and venous blood flow are heavily dependent on .
A)the pumping action of the heart
B)two- way valves
C)skeletal muscle contractions and differences in thoracic pressures due to respiratory movement
D)contraction of the vessels themselves

Question

Quizplus · Accepted Answer

Both lymph and venous blood flow rely heavily on skeletal muscle contractions and differences in thoracic pressures caused by respiratory movement. This is known as the skeletal muscle pump or respiratory pump, respectively. The pumping action of the heart and contraction of vessels themselves also play a role, but not as significant as the skeletal muscle and respiratory pumps. Two-way valves are only found in veins, not lymph vessels, and they help prevent backflow of blood.

Both Lymph and Venous Blood Flow Are Heavily Dependent on