 Dissection was then carried lateral and superior to the omohyoid muscle and lateral to the esophagus and the trachea, and medial to the sternocleidomastoid muscle and the carotid sheath. 
Dissection was then carried lateral and superior to the omohyoid muscle and lateral to the esophagus and the trachea , and medial to the sternocleidomastoid muscle and the carotid sheath .