Transverse cervical artery
|Transverse cervical artery|
Superficial and deep branches from the transverse cervical artery
|Latin||Arteria transversa cervicis,
arteria transversa colli
Dorsal scapular artery (Deep Branch)
|Transverse cervical veins|
|Supplies||The trapezius and Sternocleidomastoid muscles|
The transverse cervical artery (transverse artery of neck or transversa colli artery) is an artery in the neck and a branch of the thyrocervical trunk, running at a higher level than the suprascapular artery.
It crosses in front of the phrenic nerve and the scalene muscles, and in front of or between the divisions of the brachial plexus, and is covered by the platysma and sternocleidomastoid muscles, and crossed by the omohyoid and trapezius.
The transverse cervical artery splits into two branches, a superficial one and a deep one:
- Superficial branch (also known as the superficial cervical artery)
- Deep branch (also called the dorsal scapular artery). Descending branch in older literature. Most often, however, this artery branches directly from the subclavian artery.
It ascends beneath the anterior margin of the trapezius, distributing branches to it, and to the neighboring muscles and lymph glands in the neck, and anastomosing with the superficial branch of the descending branch of the occipital artery.
It has an ascending branch and a descending branch. The descending branch of the transverse cervical artery anastomosises with the deep and dorsal scapular artery which in turn links to the subscapular. This anastomosis is a ring circulation around the scapula where it continues to the suprascapular artery via the circumflex scapular artery.
It most frequently arises from the subclavian artery (the second or third part), but a quarter of the time it arises from the transverse cervical artery. In that case, the artery is also known as the deep branch of the transverse cervical artery, and the junction of those two is called cervicodorsal trunk.
The dorsal scapular artery, sometimes a branch from the transverse cervical artery
- Moore And Agur. Essential Clinical Anatomy (2002) America: Lippincott Williams Publisher. 2nd Ed.
- "Scapular artery, dorsal". Medcyclopaedia. GE. Archived from the original on 2012-02-05.
- Huelke DF (1962). "The dorsal scapular artery--a proposed term for the artery to the rhomboid muscles". Anat. Rec. 142: 57–61. doi:10.1002/ar.1091420109. PMID 14449723.
- Reiner A, Kasser R (1996). "Relative frequency of a subclavian vs. a transverse cervical origin for the dorsal scapular artery in humans.". Anat Rec 244 (2): 265–8. doi:10.1002/(SICI)1097-0185(199602)244:2<265::AID-AR14>3.0.CO;2-N. PMID 8808401.
- Anatomy photo:01:04-0100 at the SUNY Downstate Medical Center – "Muscles of the Back: Spinal Accessory Nerve (CN XI) and Transverse Cervical Vessels"
- Anatomy figure: 26:03-04 at Human Anatomy Online, SUNY Downstate Medical Center – "Branches of the first part of the subclavian artery."