580 ANATOMY IN A NUTSHELL. 



face of the cheek by a small opening opposite the second malar tooth of the upper 

 jaw. This duct is about the size of a crow-quill. It has an external or fibrous 

 coat, which contains contractile fibers, and an internal or mucous coat, which 

 is lined with short columnar epithelium. 



Blood Supply. — From branches of the external carotid artery. 



Nerve Supply. — (1) sympathetic from the carotid artery, (2) the fifth 

 nerve (auriculo-temporal), (3) the seventh nerve, (4) the great auricular (cer- 

 vical plexus). 



The submaxillary gland which weighs about two drachms is situated in 

 the anterior part of the submaxillary triangle of the neck below the mylo- 

 hyoid ridge of the inferior maxillary bone. The stylo-maxillary ligament sep- 

 arates this gland from the parotid gland, and the Mylo-hyoid muscle separates 

 it from the sublingual gland. 



TIh' duct of this gland (Whadon's) is about two inches long ami opens at 

 the side of the frsenum linguae. 



Blood Supply. — From the facial and lingual arteries. 



Nerve Supply. — (1) sympathetic, (2) the fifth nerve (submaxillary), (3) 

 the seventh nerve (chorda tympani). 



The sublingual gland weighs about a drachm and is situated at the side of 

 the frsenum lingua? in a fossa above the mylo-hyoid ridge of the lower jaw close 

 to the symphysis. 



The duct of this gland is called the Bartholin or Rivinus. 



This duct opens into the duct of the submaxillary gland near its termi 

 nation. 



Blood Supply. — From the sublingual and submental arteries. 



Nerve Supply. — (1) Sympathetic, (2) the fifth (gustatory). 



