Ventrolateral view of a canine neck extensively dissected to expose contents of the carotid sheath: common carotid artery (1) and vagosympathetic trunk (2), running on the artery.

Also notice: esophagus (3); recurrent laryngeal n. (4), running on the trachea (5); nerves feeding the brachial plexus (6); medial retropharyngeal lymph node (7); and thyroid gland (8).

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