Source:http://linkedlifedata.com/resource/umls/id/C0836308
FMA: Systemic venous tree (organ) the trunk of which, the superior vena cava, continues with the right atrium and the branches of which are distributed to the head, neck upper limbs, thorax and upper part of abdomen. Examples: There is only one superior systemiv venous tree.,UWDA: Systemic venous tree (organ), the trunk of which is the superior vena cava. Examples: There is only one superior vena caval tree.