108 



DISSECTION OF THE NECK. 



descendens noni along it ; next the small pharyngeal branch of the vagus ; 

 and lastly the glosso-pharyngeal. Directed inwards beneath the carotid 

 is the superior laryngeal nerve, furnishing the external laryngeal branch ; 

 together with pharyngeal offsets of the upper ganglion of the sympathetic. 



Fig. 25. 



DEEP VESSKLS AND NERVES OF THE NECK (Illustrations of Dissections). 



Arteries: a. Subclaviaa trunk. 

 6. Common carotid. 



c. External carotid, cut. 



d. Internal carotid. 



f. Inferior palatine branch of the facial. 



g. Ascending pharyngeal. 

 Nerves: 1. Glosso-pharyngeal. 



2. Spinal accessory. 



3. Pneumo-gastric or vagus. 



4. Hypoglogs-.il. 



f>. Pharyngeal branch of the vagus. 



6. Upper laryngeal bi-auch of the vagus. 



7. External laryugeal branch of the last. 



8. Thyro-hyoid branch of the hypoglossal. 



9. Descendens noni of hypoglossal, cut. 



10. Phrenic nerve of cervical plexus. 



11. Brachial plexus. Recurrent of the vagus, 



winds rouud the subclavian artery, a. 



Close to the skull the cranial nerves of the neck are interposed between 

 the artery and the vein. Around the carotid entwine branches of the 

 sympathetic, and offsets of the glosso-pharyngeal nerve. 



The cervical part of the artery remains much the same in size to the 



