Which of the following statements about lymph and lymph vessels is true?
A) Lymph leaves the system of blood vessels through the veins due to blood pressure.
B) Lymph returns to the cardiovascular system through a network of open lymph capillaries and vessels that drain the tissues of lymph.
C) Valves inside the lymph vessels direct the flow of lymph in either direction.
D) Lymph vessels eventually drain into one collecting duct.

Question

Quizplus · Accepted Answer

Lymph leaves the system of blood vessels through the capillaries due to blood pressure. Lymph must then return to the cardiovascular system through a network of open lymph capillaries and vessels that drain the tissues of lymph. Gaps between the endothelial cells of the lymph capillaries allow lymph, bacteria, and even loose cells to enter the vessel. Valves inside the lymph vessels direct the flow of lymph to larger and larger lymph vessels. Lymph vessels eventually drain into one of two collecting ducts-the thoracic duct and the right lymphatic duct.

Which of the Following Statements About Lymph and Lymph Vessels