The dorsal nasal artery is an artery of the face.[citation needed] It is one of the two terminal branches of the ophthalmic artery. It contributes arterial supply to the lacrimal sac, and outer surface of the nose.
Structure
Origin
The dorsal nasal artery is one of the two terminal branches of the ophthalmic artery (the other being the supratrochlear artery).[1] It arises in the superomedial orbit.[2]
Course and relations
It passes anteriorly[citation needed] to exit the orbit between the trochlea (superiorly[citation needed]), the medial palpebral ligament (inferiorly[citation needed]).[1] It gives a branch to the lacrimal sac before bifurcating into two branches: one branch anastomoses with the terminal (angular) part of the facial artery[1] and is important for the blood supply of the face;[citation needed] the other travels along the dorsum of the nose to supply the outer surface of the nose, and forms anastomoses with its contralateral fellow, and with the lateral nasal branch of the facial artery.[1]
Distribution
The dorsal nasal artery contributes arterial supply to the lacrimal sac,[1][3] and the outer surface of the nose.[1]
In around 20% of individuals, it also supplies the tip of the nose.[3]
References
- ^ a b c d e f Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). New York. p. 780. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ 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: location missing publisher (link) CS1 maint: others (link) - ^ a b 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): 308–311. doi:10.1097/00005537-200002010-00024. ISSN 1531-4995. PMID 10680935. S2CID 21065536.
