Dorsal nasal artery

The dorsal nasal artery is an artery of the face. It is one of two terminal branches of the ophthalmic artery. It supplies the lacrimal sac, and sometimes supplies the tip of the nose. It is an important anastomosis with the facial artery through its terminal (angular) branch.

Dorsal nasal artery
Bloodvessels of the eyelids, front view. 1, supraorbital artery and supraorbital vein; 2, nasal artery; 3, angular artery, the terminal branch of 4, the facial artery; 5, suborbital artery; 6, anterior branch of the superficial temporal artery; 6’, malar branch of the transverse artery of the face; 7, lacrimal artery; 8, superior palpebral artery with 8’, its external arch; 9, anastomoses of the superior palpebral with the superficial temporal and lacrimal; 10, inferior palpebral artery; 11, facial vein; 12, angular vein; 13, branch of the superficial temporal vein.
Details
Sourceophthalmic artery
Branchestwig to the upper part of the lacrimal sac
to root of the nose
dorsum of the nose
Identifiers
Latinarteria dorsalis nasi
TA98A12.2.06.049
TA24500
FMA50000
Anatomical terminology

Structure

The dorsal nasal artery is a terminal branch of the ophthalmic artery in the superomedial orbit (the other artery is the supratrochlear artery).[1] It passes anteriorly to exit the orbit between the trochlea superiorly and the medial palpebral ligament inferiorly. First, it gives a branch to the lacrimal sac. Then it bifurcates into a branch that anastomoses with the terminal (angular) part of the facial artery and a branch that travels along the dorsum of the nose. This latter branch also anastomoses with its contralateral pair and the lateral nasal branch of the facial artery.

Function

The dorsal nasal artery supplies the lacrimal sac. In around 20% of people, it also supplies the tip of the nose.[2] Its anastomosis with the end of the facial artery is important for blood supply of the face.

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. Jung, Dong Hak; Kim, Hee Jin; Koh, Ki Seok; Oh, Chang Seok; Kim, Kyung-Su; Yoon, Joo-Heon; Chung, In-Hyuk (2000). "Arterial Supply of the Nasal Tip in Asians". The Laryngoscope. 110 (2): 308–308. doi:10.1097/00005537-200002010-00024. ISSN 1531-4995.



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