SUBMAXILLARY REGION 



283 



anterior facial vein. Along its upper border lie the majority 

 of the submaxillary lymph glands ; the external maxillary 

 artery turns round between it and the lower border of the 

 mandible at the anterior border of the masseter ; and the sub- 

 mental branch of the external maxillary artery runs anteriorly 

 in the angle between it and the bone. 



The lateral surface is in relation posteriorly with the lower 



Parotid duct 



Accessory parotid gland 



Internal pterygoii 



Mandible 



bmaxillary 

 Mucous membr 



Sublingual gland 



Tongue. / i 

 Mylo-hyoid' / 

 Anterior belly of digastric 



Lingual nerve 

 Mandible 



Mylo-hyoid 

 Surface of submaxil- 

 lary gland covered 

 by mandible 

 Surface covered by 

 integument and fasciae 



FIG. 114. Dissection of the Parotid, Submaxillary, and Sublingual Glands. 



part of the medial surface of the internal pterygoid, and 

 anteriorly with the inner surface of the body of the mandible 

 below the mylo-hyoid ridge. The external maxillary artery, 

 after it emerges from the groove in the posterior end of the 

 gland, and before it turns round the lower border of the 

 mandible, runs anteriorly and downwards between this surface 

 and the internal pterygoid ; and the mylo-hyoid artery and 

 nerve lie between it and the body of the mandible before 

 they pass, more anteriorly, to the medial surface of the gland. 



