DISSECTING MANUAL. 



lying at first in the midline and then diverging slightly at the 

 lower part of the neck. [1038] 



THE SALIVARY GLANDS. 



Parotid. This is a three-sided mass, with anterior, posterior 

 and superficial surfaces; it lies in the parotid recess, below and 

 in front of the ear, and is encapsulated by the parotid fascia 

 (deep cervical fascia). It extends from the zygoma to the 

 angle of the jaw, or lower; and from the Sterno-mastoid to the 

 ramus of the jaw. A variably developed facial process ex- 

 tends from it anteriorly over the Masseter ; a part (socia paro- 

 tidis) of this process, just above the duct, may be separate. 

 The temporo-maxillary vein, facial nerve, and external carotid 

 artery pass through it. The duct (Stenson's) runs from the 

 most anterior part of the process across the Masseter and 

 around its anterior border; then passing inward, through the 

 Buccinator, it opens into the mouth at a papilla opposite the 

 crown of the second upper molar. [1009] 



Submaxillary. This is a three-sided mass, with external, 

 internal, and superficial (inferior) surfaces. It lies on the 

 Mylo-hyoid, Hyo-glossus, Digastric and Stylo-hyoid, just in 

 front of the parotid, partly in the submaxillary triangle, and 

 partly under cover of the mandible. A layer of deep cervical 

 fascia encapsulates it. A narrow deep process extends, from 

 its internal surface, under the Mylo-hyoid. The duct (Whar- 

 ton's) runs, from the middle of the internal surface, forward 

 under the Mylo-hyoid and along the upper and inner aspect of 

 the deep process; then running under the floor of the mouth, 

 on the inner side of the sublingual gland and across the Hyo- 

 glossus and Genio-glossus, it opens into the mouth at a papilla 

 lying alongside of the frenulum linguae and close to the papilla 

 of the opposite duct. [1011] 



Sublingual. This is a small almond-shaped mass lying 

 under the floor of the mouth, on the Mylo-hyoid, between the 

 mandible and Genio-glossus. Its ducts (Rivinus') leave its 



[88] 



