bronchomediastinal lymph trunk bronchomediastinal lymph trunk the efferent vessels of the tracheobronchial lymph nodes ascend upon the trachea and unite with efferents of the internal mammary and anterior mediastinal glands to form the right and left bronchomediastinal trunks. bronchomediastinal lymph trunkterminal collecting trunks of right side. a. jugular trunk. b. subclavian trunk. c. bronchomediastinal trunk. d. right lymphatic trunk. e. gland of internal mammary chain. f. gland of deep cervical chain.detailssystemlymphatic systemsourceparasternal lymph nodesdrains tothoracic duct, right lymphatic ductidentifierslatintruncus bronchomediastinalista98a12.4.01.005ta25135, 5136fma9585anatomical terminology the right bronchomediastinal trunk may join the right lymphatic duct, and the left thoracic duct. more frequently, they open independently of these ducts into the junction of the internal jugular and subclavian veins of their own side.