COMMON CAKOTID. 



369 



on the Longus colli muscle, then on the Rectus anticus major, from which it is 

 separated by the sympathetic nerve. The recurrent laryngeal nerve and inferior 

 thyroid artery cross behind the vessel at its lower part. Internally, it is in 

 relation with the trachea and thyroid gland, the inferior thyroid artery and 

 recurrent laryngeal nerve being interposed; higher up, with the larynx and 



Fig. 207. Surgical Anatomy of the Arteries of the Neck. Right Side. 



pic. 208. 

 flu n of 



pharynx. On its outer side are placed the internal jugular vein and pneumogaa. 

 trie nerve. 



At the lower part of the neck, the internal jugular vein on the right side 

 recedes from the artery, but on the left side it approaches it, and often crosses its 

 lower part. This is an important fact to bear in mind during the performance of 

 any operation on the lower part of the left common carotid artery. 

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