Posterior_ethmoidal_artery

Posterior ethmoidal artery

Posterior ethmoidal artery

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The posterior ethmoidal artery is an artery of the head which arises from the ophthalmic artery to supply the posterior ethmoidal air cells, and the meninges.[1] It is smaller than the anterior ethmoidal artery.[2]

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Anatomy

Origin

The posterior ethmoidal artery is an orbital branch of the ophthalmic artery.[1]

Course and relations

After branching from the ophthalmic artery, the posterior ethmoidal artery passes between the upper border of the medial rectus muscle and superior oblique muscle[citation needed] to reach, enter and traverse the posterior ethmoidal canal.[3]

Branches

Meningeal branch

It emits a meningeal branch to the dura mater after entering the cranium.[2][3]

Nasal branches

It emits nasal branches that pass through the cribriform plate to reach the nasal cavity. The nasal branches form anastomoses with the sphenopalatine artery.[4]

Distribution

This artery supplies the posterior ethmoidal air sinuses, the dura mater[2] of the anterior cranial fossa, and the upper part of the nasal mucosa of the nasal septum.[citation needed]

References

  1. [1]
    Gupta, Neha; Motlagh, Mahsaw; Singh, Gurdeep (2022), "Anatomy, Head and Neck, Eye Arteries", StatPearls, Treasure Island (FL): StatPearls Publishing, PMID 30725748, retrieved 2022-12-27
  2. [2]
    Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 570.
  3. [3]
    Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). [New York]. p. 779. ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link)
  4. [4]
    Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42nd ed.). [New York]. p. 779. ISBN 978-0-7020-7707-4. OCLC 1201341621.{{cite book}}: CS1 maint: location missing publisher (link)

Public domain This article incorporates text in the public domain from page 570 of the 20th edition of Gray's Anatomy (1918)

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