Completar Frases The lymphatic vessels part 3Versión en línea This activity will help you retain information about the lymphatic vessels. por Leah Lloyd 1 thin muscle backflow movements cardiovascular gradients blood muscle edema valves Like veins , the lymphatic tributaries have walls and have to prevent of blood . There is no pump in the lymphatic system like the heart in the system . The pressure to move lymph through the vessels have to come from external sources . These pressure gradients come from skeletal contraction , from respiratory , and from contraction of the smooth within the wall of the vessel . Because there is no rhythmic heart to pump it along , lymph transport is sporadic and much slower than the transport of in the veins . Anything that interferes with the flow of lymph , may cause tissue fluid to accumulate , resulting in .
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