REGION OF THE CAROTID ARTERIES. 



89 



depth of the superjacent structures, but is usually one 

 about three inches in length, along the anterior border 



FIG. 14. 



r k 



&WS 



Common carotid artery and its branches, a. Sterno-mastoid reflected, b. 

 Glandulse concatenate, c. Anterior belly of digastric, c'. Posterior belly of di- 

 gastric, e. Thyro-hyoid. /. Sterno-thyroid. g. Sterno-hyoid. h. Omo-hyoid. 

 i. Anterior scalenus. k. Masseter. I. Submaxillary gland, m. Parotid gland. 

 n. Common carotid, n'. Internal jugular vein (joined by the anterior jugular 

 and supra-scapular), o. External carotid, p. Internal carotid, r. Facial, r'. 

 Facial vein. s. Lingual, t. Superior thyroid, t'. Nerve to thyro-hyoid. u u' . 

 Vagus, v'. Spinal accessory nerve, x. Hypoglossal nerve, x'. Descendens noui 

 nerve, z. Phrenic nerve. 



of the sterno-mastoid, from just below the angle of the 

 jaw to the cricoid cartilage, dividing the integument, 

 superficial fascia, and platysma, and the wound being 

 kept open by retractors; the deep fascia is met with, 

 which is very adherent to the sheath of the vessels; a 

 plexus of veins, and a few small arterial twigs, are often 



