Which statement(s) is(are) true regarding the vessels of the vascular system and the lymphatic system. a) lymphatics are usually packaged together in connective tissue sheaths with blood vessels and pulsating expansions of the nearby arteries also promote lymph flow. b) mechanisms that promote venous return in blood vessels also act within lymphatic vessels. c)vessels of the vascular system are relatively high-pressure conduits compared to vessels of the lymphatic system. d)none of the above. e)all of the above.

B) Mechanisms that promote venous return in blood vessels also act within lymphatic vessels.

Explanation:  

- One of the functions of the lymphatic system is to reabsorb fluid that leaks out of the vascular network into the interstitium and to return it to the general circulation. The lymphatic system is markedly different from the circulatory system in both function and structure. Lymphatic vessels are thin-walled with valves, and most resemble veins; when stretched, the vessels contract and propel lymph along the vessel. The lymphatic vessels begin blindly, deep in the body's connective tissue. Lymphatic capillaries possess one-way valves. These valves permit the uptake of fluid from the body but do not allow the fluid to flow back out of the capillaries into the intracellular spaces. It allows for leakage from the vascular system to be reabsorbed into the body's circulation system.

240 minutes

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