Source Ophthalmic artery Dorlands
/Elsevier a_61/12154258 | Vein Ethmoidal veins | |
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Branches Meningeal branch
Nasal branches Supplies Posterior ethmoidal cells
Posterior ethmoidal air sinuses
Dura mater of the anterior cranial fossa
Upper part of the nasal mucosa Latin Arteria ethmoidalis posterior | ||
The posterior ethmoidal artery is an artery of the head which supplies the nasal septum. It is smaller than the anterior ethmoidal artery.
Contents
Course
Once branching from the ophthalmic artery, it passes between the upper border of the medial rectus muscle and superior oblique muscle to enter the posterior ethmoidal canal. It exits into the nasal cavity to supply posterior ethmoidal cells and nasal septum; here it anastomoses with the sphenopalatine artery.
There is often a meningeal branch to the dura mater while it is still contained within the cranium.
Supplies
This artery supplies the posterior ethmoidal air sinuses, dura mater of the anterior cranial fossa, and the upper part of the nasal mucosa of the nasal septum.
References
Posterior ethmoidal artery Wikipedia(Text) CC BY-SA