|Section of the neck at about the level of the sixth cervical vertebra. Showing the arrangement of the fascia coli. Carotid sheath is labeled in red.|
|Latin||vagina carotica fasciae cervicalis|
|Gray's||subject #111 389|
The carotid sheath is located at the lateral boundary of the retropharyngeal space at the level of the oropharynx on each side of the neck and deep to the sternocleidomastoid muscle, extending from the base of the skull to the first rib and sternum.
The three major structures contained in the carotid sheath are:
- the internal carotid artery (arising from the common carotid artery)
- internal jugular vein
- the vagus nerve
The carotid artery lies medial to the internal jugular vein, and the vagus nerve is situated posteriorly between the two vessels.
The carotid sheath also contains the deep cervical lymph nodes.
The ansa cervicalis is embedded in the anterior wall of sheath. It is formed by "descendens hypoglossi" (C1) and "descendens cervicalis" (C2-C3).
- MedEd at Loyola grossanatomy/dissector/labs/h_n/pharynx/ph2_1a.html
- Norman/Georgetown lesson8 (latpharyngealitmes)
- Mnemonic at medicalmnemonics.com 669
- Cross section at tufts.edu