FMA definition : Subdivision of suprior systemic venous tree, each instance of which is a tributary
of some left brachiocephalic vein that drains blood from some pericardium and thoraco-abdominal
diaphragm.;
Subdivision of suprior systemic venous tree, each instance of which is a tributary
of some left brachiocephalic vein that drains blood from some pericardium and thoraco-abdominal
diaphragm.