THE PAROTID REGION. 55 



nerves, hypoglossal nerve, and the superior cervical 

 ganglion of the sympathetic. 



The substance of the gland contains so many impor- 

 tant structures that operative proceedings connected 

 with it are rendered excessively difficult and hazardous. 

 The external carotid artery traverses its posterior part, 

 giving off its anterior and posterior auricular and super- 

 ficial temporal branches. Behind the external carotid 

 is the external jugular vein, which receives numerous 

 branches in its substance. A quantity of lymphatics 



FIG. 11. 



Sketch of the deep relations of the right parotid gland (the gland itself has 

 been removed and the ramus of the lower jaw drawn forward). 1. Remains of 

 aponeurosis of gland. 2. Digastric muscle. 3. Stylo-hyoid muscle. 4 Stylo- 

 pharyngeus (drawn aside). 5. Stylo-glossus muscle. 6. Stylo-maxillary liga- 

 ment. 7. External jugular vein. 8. External carotid. 9. Lingual artery seen 

 through an opening in the aponeurosis. 10. Posterior auricular artery. 11. 

 Transverse facial artery. 12. Internal maxillary artery. 13. Anterior and 

 middle temporal arteries. 14. Internal carotid. 15. Hypoglossal nerve. 16. 

 Glosso-pharyngeal nerve. 17. Trunk of facial nerve. 19. Steno's duct. 



are also found in relation with the gland. The super- 

 ficial lymphatic ganglia receive the vessels of the scalp ; 

 those within the gland, the vessels from the eyebrows, 



