Supratrochlear artery

The supratrochlear artery (or frontal artery) is one of the terminal branches of the ophthalmic artery. It branches from the ophthalmic artery near the trochlea of the superior oblique muscle in the orbit.[1][2]

Supratrochlear artery
The ophthalmic artery and its branches (supratrochlear artery labeled at center top)
The arteries of the face and scalp (supratrochlear artery labeled at upper right, above eye)
Details
SourceOphthalmic artery
Suppliesskin of medial forehead and scalp, underlying pericranium and frontalis muscle
Identifiers
LatinArteria supratrochlearis, arteria frontalis
TA98A12.2.06.048
TA24499
FMA50025
Anatomical terminology

Pathway

The supratrochlear artery branches from the ophthalmic artery and passes anteriorly through the superomedial orbit. It travels medial to the trochlear nerve. With the supratrochlear nerve, the supratrochlear artery exits the orbit through the supratrochlear notch (variably present), medial to the supraorbital foramen and its artery and nerve. It then ascends on the forehead.

The supratrochlear artery anastomoses with the ipsilateral supraorbital artery and contralateral supratrochlear artery. Since the supratrochlear artery is an ultimate branch of the internal carotid artery, this is an example of an internal carotid artery - external carotid artery anastomosis.

Function

The supratrochlear artery supplies blood to the skin of the medial aspect of the forehead and scalp, as well as the underlying pericranium and frontalis muscle.

References
  1. Gray's anatomy : the anatomical basis of clinical practice. Standring, Susan (Forty-first ed.). [Philadelphia]. 2016. ISBN 978-0-7020-5230-9. OCLC 920806541.{{cite book}}: CS1 maint: others (link)
  2. Agorgianitis, Loukas; Panagouli, Eleni; Tsakotos, George; Tsoucalas, Gregory; Filippou, Dimitrios (2020-02-29). "The Supratrochlear Artery Revisited: An Anatomic Review in Favor of Modern Cosmetic Applications in the Area". Cureus. 12 (2): e7141. doi:10.7759/cureus.7141. ISSN 2168-8184. PMC 7105260. PMID 32257686.

https://radiopaedia.org/articles/supratrochlear-artery

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