716 



THE LYMPHATIC SYSTEM 



above the omo-hyoid. It will be noted in fig. 563 that the most anterior vessels end in the 

 lowest nodes, while those from the back of the tongue end in higher nodes. 



(2) The marginal vessels are from eight to twelve in number. They all pass to the superior 



Fig. 561. — Lymphatics of the Head, Neck, and Axilla. (After Toldt, "Atlas of Human 

 Anatomy," Rebman, London and New York.) 



Anterior auricular nodes 



Posterior auricular. ,-, 

 nodes \^^, 



Parotid lymph-nodes 



Anterior facial vein 



Mucous membrane of 

 the lips 



Occipital nodes -c. 



Sterno-cleido-mastoi 

 muscle 



Superior nodes of internal jugular 

 chain 



Inferior nodes of internal jugular chain 



Submaxillary 



7*^7^^ lymph-nodes 



^J^~~^ Submental node 



Connection with the anterior 

 mediastinal nodes 



Right ( Jugular trunk .. 

 lymphatic Subclavian 

 t'"'^'' ^ trunk 



Axillary nodes 



IX. 



Pectoral nodes 



Lymph-vessels of the breasts 



deef) cervical nodes, a part of them pa.s.siiig exlernal to the .sublingual gland, while the larger 

 number pass internal to it. There is one huge and constant node at the point where the digastric 

 muscle cros.ses the jugular vein, to which a large number of the vessels converge. 



