504 ANATOMY IX A NUTSHELL. 



and sonic of them are in the substance of the parotid gland. Their radicles 

 drain part ofthe temple, externa] pails of the eye lid. and the posterior 

 pari of die cheek. The vessels which leave these nodes empty into (a) sub- 

 maxillary nodes, (b) some of them in the superficial cervical nodes. (4) An 

 anterior or frontal set pass over the frontal hone and empty into the 

 buccal ami submaxillary nodes. The buccal Lymphatic nodes are situated 

 mi the surface of the Buccinator muscle. 



The superficial lymphatic vessels of the face end in the submaxillary lym- 

 phatic nodes. These nodes are situated beneath the body of the lower jaw in 

 the submaxillary triangle of the neck. There are eight to twelve of these nodes. 



Their radicles are, (1) FROM THE UPPER AND LOWER LIPS \\D SIDE OF NOSE, (2) 

 FROM THE FLOOR OF THE MOUTH, (3) FROM FRONT PART OF TONGUE, (4) FROM 

 SUBLINGC \l. Wl> SI BM VXILI.ARY SALIVARY GLANDS, and (")) FROM THE ANTERIOR 

 PART OF THE CAROTID LYMPHATIC NODES. The vessels that leave these nodes 

 empty into the deep cervical lymphatic nodes and also into the superficial lym- 

 phatic nodes. 



The suprahyoid lymphatic nodes are two or three in number and are sit- 

 uated in the median line between the anterior bellies of the Digastric muscles. 



The superficial lymphatic vessels of the neck join the superfical lymphatic 

 vess< Ls of the seal]) and face and upper part of the thorax. They empty into 

 the superficial cervical lymphatic nodes. These nodes are situated between 

 the Platysma myoides muscle and the deep fascia along the course of the ex- 

 ternal jugular vein. Small lymphatic nodes are found anterior to these between 

 the hyoid bone and the sternum, also posteriorly over the Trapezius muscle. 

 The radicle- of these superficial cervical nodes are, (1) thosk from the occipital 



NODES, (2) THOSE FROM THE POSTERIOR AURICULAR NODES, (3) SOME FROM THE 

 PAROTID \\D SUBMAXILLARY NODES, ,(4) FROM THE INTEGUMENT OF THE NECK 



AND external ear. The vessels passing from these nodes end in the deep 

 cervical lymphatic nodes. 



LESSOX CLXVIII. 



The deep lymphatic vessels of the head and neck follow the course of the 

 deep arteries and end in the deep cervical chain of lymphatic nodes. They 



an- a- follows: (1) meningeal i.vMPHATic vessels which pass with the menin- 

 geal arteries through foramina at the base of the skull to end in dee]) cervical 

 nodes. (2) CEREBRAL LYMPHATICS, which pass with the internal carotid artery, 

 bral artery, and internal jugular vein through foramina at the base of the 

 skull to join the deep lymphatic nodes. (3) lymphatic VESSELS of the ORBIT 

 follow the inferior orbital vein into the spheno -maxillary fossa ami fromhere 

 they follow the internal maxillary vein and empty into the internal maxillary 



nodes and deep carotid nodes, (4) THE LYMPHATIC VESSELS FROM THE TEMPORAL 



FOSSA wi> ZYGOMATK i i »SS \ pass through the internal maxillary nodes to join 

 the deep cervical nodes, (5) lymphatn \ essels from the inferior of the nose 

 end in the lymphatics of the pharynx and into the deep cervical nodes. They 

 communicate with the subdural lymph space and the subarachnoid lymph 



