1582 



Iir.MAN ANATOMY. 



THE SALIVARY GLANDS. 



These besides the mucous follicles of the mouth, are \he parotid , the submax- 

 illary and the sublingual glands of the two sides. They are all reddish gray in 

 color and of about the'same firmness, excepting the parotid which is denser. 



The Parotid Gland. The parotid is the largest of the salivary glands, weigh- 

 ing from 20-30 gm., with a considerable range beyond these limits It is situate 

 behind the upper part of the ramus of the lower jaw, which it overlaps both within 

 and without. Its limits in both directions are very variable. 1 he prolongation for- 

 ward over the masseter muscle may become nearly distinct from the rest of the gland, 



FIG. 1343. 



parotid 



Inframandibular. 

 hranoh of facial 

 nerve 



External jugular 

 vein 



ial artery 



Mylo-hyoid 

 Digastric, anterior belly 



Submaxillary gland 



Su|>ertH i;il ilissiTtioti, showing parotid and suhmaxillary glands undisturbed. 



and is thru known as the soi'itt /><iri>/ii/i.\\ The s/ic-nt/t of tin- parotid is a strong fibrous 

 envelope continuous with the cervical fascia in front of the sterno-mastoid, closely 

 applied to tin- glandular substance and continuous with the partitions that pass 

 through the or^an, so that it can t>e dissected off from the gland only with difficulty. 

 Tin' parotid is divided into nianv small compartments or lobules by these resisting 

 septa of fibrous tissue, the ejii.mtity of which gives it toughness. The shape of the 

 parotid, as well as it-, si/e, is variable, since it 14 rows where it can among more or less 

 resisting structures. Its shape and relations, therefore, may be considered together. 

 Relations. The parotid occupies a cavity hounded in front by the ramus of 

 the jaw, covered by the masseter and internal ptcrygoid muscles ; behind by the 



