THE HI:, in AND XECK. 



61 



geal nerve ; (4) these structures, the superior laryngeal nerve and artery, pierce 

 the thyro-hyoid membrane ; (5) the anastomosis is feeble with the opposite side ; 

 free with the inferior laryngeal artery, and the distribution is to the gland and to 

 the depressor muscles of the hyoid bone that cover the gland. (Fig. 28.) 



The facial artery: (i) often given off with the lingual; (2) note its deep 

 course behind the hypoglossal nerve, the stylo-hyoid muscle, the digastric 

 muscle, the parotid gland. It crosses the mandible in front of the masseter 

 muscle. Its specific sympathetic nerves are called nervi molles. (Fig. 17.) 



The facial vein (Fig. 18), you will note, takes a superficial course. It lies in 



Anterior branch of pos- 

 terior auricular 



I'osterior branch of pos- 

 terior auricular 



PAROTID GLAND- L_, 



Sterno-mastoid, cut 



Auricular branch of 

 occipital 



Rectus capitis lateralia 



Sl'IXAL ACCESSORY 



NER VE 

 Posterior auricular 



Internal jttfjit/itr n'in 

 Facial artery 



J/Y/'OflLOSXAL y. 



J.int/iirtl nrferi/ 



PNEUMOOASTRIC 



rio/' Itiiiroi'l 



Common carotid 



External branch of 

 occipital 



Internal branch of 

 occipital 



ComplexuB 



Priceps cervicis 



Superior oblique 

 Trachelo-mastoid, cut 

 Splenius capitis, cut 

 Meningeal brancln'x 



Sterno-mastoid branch oj 

 occipital 



Internal carotid 



Sterno-mastoid 



External carotid 

 Trapeziua 



FIG. 33. SCHEME OF OCCIPITAL AND POSTERIOR AURICULAR ARTERIES. 



front of the structures behind which the facial artery passes. It opens into the 

 external jugular vein. In your dissection show all the structures by which the 

 facial artery and vein are separated in their cervical stage. 

 Branches of the facial artery in the neck are : 



1. To the stylo-hyoid, internal pterygoid, masseter, and buccinator. 



2. Submaxillary branches four, to the submaxillary gland. 



3. Submental artery to structures under the chin. 



4. Tonsillar branches to the tonsil and tongue. 



5. Ascending palatine branches to the soft palate. 



The Occipital Artery (Fig. 33). (i) Find the hypoglossal nerve passing 





