Thyrocervical trunk
Superficial dissection of the right side of the neck, showing the carotid and subclavian arteries.
Details
SourceSubclavian artery
BranchesInferior thyroid artery
Suprascapular artery
Transverse cervical artery
Identifiers
LatinTruncus thyrocervicalis
TA98A12.2.08.042
TA24590
FMA3990
Anatomical terminology

The thyrocervical trunk is a short artery of the neck. It arises from the subclavian artery, then promptly divides into its branches: the inferior thyroid artery, suprascapular artery, and (sometimes) the transverse cervical artery.

Its branches explain the alternative name for this blood vessel: "truncus thyrobicervicoscapularis".

Structure

The thyrocervical trunk is short and thick.

Origin

The thyrocervical trunk is a branch of the subclavian artery.[1][2] It arises from (the anterior aspect of) the first portion of this vessel, close to the medial border of the anterior scalene muscle;[3] between the origin of the subclavian artery and the inner border of the scalenus anterior muscle.

Relations

It is located distally to the vertebral artery and proximally to the costocervical trunk.

Branches

The thyrocervical trunk promplty divides into its branches:[3]

The suprascapular artery and transverse cervical artery both head laterally and cross in front of (anterior to) the scalenus anterior muscle and the phrenic nerve. The inferior thyroid artery runs superiorly from the thyrocervical trunk to the inferior portion of the thyroid gland. There is significant variation in the origin of these vessels.[5]

Additional images

References

  1. ↑ Alexander, Matthew D.; Hutcheson, David; Lawton, Michael (2021). "1 - Neurovascular arterial anatomy: Brain, head, and neck". Handbook of Clinical Neurology. Vol. 176. Elsevier. pp. 1–21. doi:10.1016/B978-0-444-64034-5.00011-0. ISBN 978-0-444-64034-5. ISSN 0072-9752. PMID 33272390. S2CID 227280215.
  2. ↑ Kaplan, Edwin L.; Angelos, Peter; James, Benjamin C.; Nagar, Sapna; Grogan, Raymon H. (2016). "96 - Surgery of the Thyroid". Endocrinology: Adult and Pediatric (7th ed.). Saunders. pp. 1666–1692. doi:10.1016/B978-0-323-18907-1.00096-2. ISBN 978-0-323-18907-1.
  3. 1 2 Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 590. ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link)
  4. ↑ Essentials of human anatomy Head and neck A.K. Dutta 5th Edition p94
  5. ↑ Haas, Franz; Weiglein, Andreas (2009). "21 - Trapezius flap". Flaps and Reconstructive Surgery - Section Two. Saunders. pp. 249–269. doi:10.1016/B978-0-7216-0519-7.00021-6. ISBN 978-0-7216-0519-7.
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