<Tr> <Th> FMA </Th> <Td> 30315 </Td> </Tr> <Tr> <Td_colspan="2"> Anatomical terminology (edit on Wikidata) </Td> </Tr> <P> The lymphatic vessels (or lymph vessels or lymphatics) are thin - walled vessels structured like blood vessels, that carry lymph . As part of the lymphatic system, lymph vessels are complementary to the cardiovascular system . Lymph vessels are lined by endothelial cells, and have a thin layer of smooth muscle, and adventitia that bind the lymph vessels to the surrounding tissue . Lymph vessels are devoted to the propulsion of the lymph from the lymph capillaries, which are mainly concerned with absorption of interstitial fluid from the tissues . Lymph capillaries are slightly larger than their counterpart capillaries of the vascular system . Lymph vessels that carry lymph to a lymph node are called afferent lymph vessels, and those that carry it from a lymph node are called efferent lymph vessels, from where the lymph may travel to another lymph node, may be returned to a vein, or may travel to a larger lymph duct . Lymph ducts drain the lymph into one of the subclavian veins and thus return it to general circulation . </P> <P> Generally, lymph flows away from the tissues to lymph nodes and eventually to either the right lymphatic duct or the largest lymph vessel in the body, the thoracic duct . These vessels drain into the right and left subclavian veins respectively . </P>

Where does lymph fluid drain in order to go back into the cardiovascular system