Labelled Carotid and Prevertebral sheaths Diagram

Labelled carotid sheath contains common/internal carotid artery, internal jugular vein, vagus nerve (CN X), sympathetic chain (cervical ganglia), deep cervical lymph nodes. Prevertebral fascia encloses prevertebral muscles (longus colli/capitis), brachial plexus roots, phrenic nerve.