Posterior ethmoidal artery

Posterior ethmoidal artery
The ophthalmic artery and its branches. (Anterior and posterior ethmoid labeled at left.)
Details
Latin	Arteria ethmoidalis posterior
Source	Ophthalmic artery
Branches	Meningeal branch Nasal branches
Vein	Ethmoidal veins
Supplies	Posterior ethmoidal cells Posterior ethmoidal air sinuses Dura mater of the anterior cranial fossa Upper part of the nasal mucosa
Identifiers
Dorlands /Elsevier	a_61/12154258
TA
TH	{{#property:P1694}}
TE	{{#property:P1693}}
FMA	{{#property:P1402}}
Anatomical terminology [[[d:|edit on Wikidata]]]

The posterior ethmoidal artery is an artery of the head which supplies the nasal septum. It is smaller than the anterior ethmoidal artery.

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

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

External links

• lesson9 at The Anatomy Lesson by Wesley Norman (Georgetown University) (nasalseptumart)
• http://www.dartmouth.edu/~humananatomy/figures/chapter_45/45-6.HTM