712 



THE LYMPHATIC SYSTEM 



lip and jaAv, the floor of the mouth, and the tip of the tongue. The efferent 

 vessels pass either to the submaxillary nodes or to the deep cervical chain. 



2. THE LYMPHATIC VESSELS OF THE FACE 



The different parts of the face and their lymphatic relation to these groups of 

 superficial nodes will now be considered. 



The lymphatics of the scalp form a rich network in the neighbourhood of the 

 vertex, from which vessels pass in various directions. From the frontal region a 



Fig 557. — Lymphatic Nodes and Vessels of the Ear, Eyelids, Nose and Lips. New- 

 born child. P, parotid. M, submaxillary gland. B, buccal fat ("sucking pad")- Supero- 

 lateral deep cervical lymph nodes are not labelled. (After Bartels.) 



Ant. auricular ' 

 lymph nodes 



Parotid lymph 

 nodes 



Ant. submaxillary 

 lymph nodes 



Occipital 



lymph 

 ""- nodes 



Posterior 

 --- auricular 



lymph 



nodes 

 Inferior 



auricular 



lymph 

 "-.>^ nodes 

 ^Superficial 



cervical 



lymph 

 '~^ nodes 

 |r^ ''-Deep 



cervical 



lymph 



nodes 



(Supero- 



medial) 



Middle submaxillary/ 



lymph nodes / 



Inferior submental lymph nodes (var.) 



Posterior submaxillary lymph nodes 



number of ducts pass downward and backward to the parotid nodes; those from 

 the parietal and temporal regions pass to the anterior auricular, parotid, and pos- 

 terior auricular nodes; and those from the occipital region pass partly to the occi- 

 pital nodes and partly to the superior deep cervical group, while a single large 

 vessel descends along the posterior border of the sterno-mastoid muscle to ter- 

 minate in on(! of th(^ inferior deep cervical nodes. 



The lymphatics of the eyelids and conjunctiva. — The capillary plexus of the 

 eyelids and tlu; conjuMctiva is an abundant one, and at the free border of the 

 eyelids becomes extremely close. 'r\w lymphatics from the lateral three-fourths 

 of the lids pass to the; anterior auricuilar and parotid groups of nodes, while those 

 from the medial one-fourth pass obliquely across the cheek with the facial vein to 

 terminate in tlu; facial and submaxillary nodes (figs. 556, 557, 561). 



The lymphatics of the nose. — Tiic lymphatics of the nose (fig. 556) form a net- 

 work wliicli is coarse at the root of the organ, but dense over the alar region. 

 The vessels run in three sets —(1) one s(!t i)assing over the eye to the parotid nodes; 

 (2) a Hci passing un(l<!r tiie eye to the same nodes; and (3) the most important 



