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Sphenopalatine artery

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Sphenopalatine artery
Plan of branches of internal maxillary artery. (Sphenopalatine visible in upper right.)
Details
SourceMaxillary artery
BranchesPosterior lateral nasal branches
posterior septal branches
SuppliesFrontal, maxillary, ethmoidal, and sphenoidal sinuses
Identifiers
Latinarteria sphenopalatina
TA98A12.2.05.088
TA24460
FMA49804
Anatomical terminology

The sphenopalatine artery (nasopalatine artery) is an artery of the head, commonly known as the artery of epistaxis.[1] It passes through the sphenopalatine foramen to reach the nasal cavity. It is the main artery of the nasal cavity.[2]

Course

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The sphenopalatine artery is a branch of the maxillary artery which passes through the sphenopalatine foramen into the cavity of the nose, at the back part of the superior meatus. Here it gives off its posterior lateral nasal branches.

Crossing the under surface of the sphenoid, the sphenopalatine artery ends on the nasal septum as the posterior septal branches. Here it will anastomose with the branches of the greater palatine artery.

Clinical significance

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The sphenopalatine artery is the artery commonly responsible for epistaxis (difficult to control bleeding of the nasal cavity, especially the posterior nasal cavity).[3] In severe nose bleed cases which do not stop after intense packing of anti-clotting agents, the sphenopalatine artery can be ligated (clipped and then cut) during open surgery or embolized (blocked with surgical glue or tiny microparticles).[4] Embolization is typically done under fluoroscopic guidance with minimally invasive techniques (e.g. via small microcatheters inserted into arteries in the wrist or groin) by interventional radiologists.

See also

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References

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Public domain This article incorporates text in the public domain from page 562 of the 20th edition of Gray's Anatomy (1918)

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Notes

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  1. ^ Dr.Padampreet Singh Batra’s ENT, Head and Neck » Blog Archive » Epistaxis (NASAL BLEEDING)
  2. ^ Sinnatamby, Chummy S. (2011). Last's Anatomy (12th ed.). Elsevier Australia. p. 364. ISBN 978-0-7295-3752-0.
  3. ^ Gras-Cabrerizo, JR; Ademá-Alcover, JM; Gras-Albert, JR; Kolanczak, K; Montserrat-Gili, JR; Mirapeix-Lucas, R; Del Campo, FS; Massegur-Solench, H (July 2014). "Anatomical and surgical study of the sphenopalatine artery branches". European Archives of Oto-rhino-laryngology. 271 (7): 1947–51. doi:10.1007/s00405-013-2825-1. PMID 24253386.
  4. ^ Robinson, Anthony E; McAuliffe, William; Phillips, Timothy J; Phatouros, Constantine C; Singh, Tejinder P (December 2017). "Embolization for the treatment of intractable epistaxis: 12 month outcomes in a two centre case series". The British Journal of Radiology. 90 (1080): 20170472. doi:10.1259/bjr.20170472. PMC 6047638. PMID 28972795.