How would muscle contraction affect lymphokinetic action?
A) There is no association between muscle contraction and lymphokinetic action.
B) A decreased flow of lymph that occurs with increased physical activity helps return fluid to the cardiovascular system.
C) Contraction of the smooth muscle in the thoracic vessel walls prohibit lymphatic vessels from pulsing rhythmically and, thus, helps to keep lymph from moving from one valved segment to the next.
D) Increased external pressure from muscle contraction also increases lymphatic pressure, which results in keeping lymph moving in only one direction.

Question

Quizplus · Accepted Answer

Muscle contractions help to squeeze lymphatic vessels, which increases the pressure inside these vessels. This pressure helps to push lymph through the vessels in one direction, towards the heart, because of the presence of valves in the lymphatic system that prevent backflow. This mechanism is crucial for the lymphatic system's role in returning fluid from the tissues back into the cardiovascular system.

How Would Muscle Contraction Affect Lymphokinetic Action