[Contribution to the study of the cervical lymphatic system of the young and adult white rats (Rattus norvegicus). II (author's transl)]

Abstract

This report is based upon microdissections of 30 young white rats and 21 adults, of both sexes, in which the morphology of cervical lymphatic system was studied by injection of the submandibular and deep cervical lymph nodes with colored latex-neoprene. There were no differences between the lymph nodes of young and adult rats. A submandibular chain is present which has a variable number of lymph nodes; this chain gives efferent lymphatic branches to the deep cervical lymph nodes. Two groups of deep cervical lymph nodes, one caudal and the other cranial were noted; these lymph nodes yield efferent branches; which form the deep jugular trunk, and join at the jugulo-subclavian angle; the jugular trunk may join branches coming from the thoracic limb, from the thorax cavity, and branches which go along the external jugular vein and omocervical vein.