Question

multiple select question
select all that apply
choose all the factors that cause or contribute to the flow of lymph.

pressure from the heart
the skeletal muscle pump
valves
blood volume
the respiratory pump
high lymphatic pressure

Explanation:

• The skeletal muscle pump: Contraction of skeletal muscles compresses lymphatic vessels, pushing lymph forward.
• Valves: Lymphatic valves prevent backflow, ensuring one - way lymph flow.
• The respiratory pump: During inhalation, the pressure changes in the thoracic cavity help draw lymph into the thoracic duct.
• Pressure from the heart does not directly drive lymph flow (lymphatic system is not directly connected to the heart's pumping in the same way as the circulatory system). Blood volume is related to blood circulation, not lymph flow. High lymphatic pressure would impede, not promote, lymph flow.

Answer:

B. The skeletal muscle pump, C. Valves, E. The respiratory pump