Chap, ix.] THE NECK. 145 



jugular vein, extending outwards into the supra- 

 clavicular fossa, and becoming continuous with the 

 axillary and mediastinal glands. 



These glands are very often enlarged and inflamed, 

 and it is in this part of the lymphatic system that the 

 changes in scrofula are most commonly met with. 

 The inflammatory affections in glands would appear 

 to be always of a secondary nature (if we exclude 

 some cases of inflammation excited by injury, and 

 perhaps by exposure to severe cold), and to follow 

 disturbances in those parts of the periphery whence 

 they respectively receive their lymph. It may be 

 convenient, therefore, to group the relations of certain 

 glands to certain parts of the periphery. 



Scalp. Posterior part = suboccipital and mas- 

 toid glands. Frontal and parietal portions = parotid 

 glands. 



Vessels from the scalp also enter the superficial 

 cervical set of glands* 



Skin of face and neck = submaxillary, parotid, 

 and superficial cervical glands. 



External ear = superficial cervical glands. 



Lower lip = submaxillary and suprahyoid glands. 



Buccal cavity = submaxillary glands and deep 

 cervical glands (upper set). 



Gums of lower jaw submaxillary glands. 



Tongue* Anterior portion = suprahyoid and sub- 

 maxillary glands. Posterior portion = deep cervical 

 glands (upper set), 



Tonsils and palate ^.QQ^ cervical glands (upper 

 set). 



Pharynx. Upper part parotid and retro-pha- 

 ryngeal glands. Lower part = deep cervical glands 

 (upper set). 



Larynx, orbit, and roof of mouth = deep cervical 

 glands (upper set). 



Nasal fossce = retro-pharyngeal glands, deep cervical 



