Posterior ethmoidal nerve
Encyclopedia
The posterior ethmoidal nerve is a branch of the nasociliary nerve
.
It passes through the posterior ethmoidal foramen
, with the posterior ethmoidal artery
.
It carries sensory information from the sphenoid sinus and posterior ethmoidal air cells
.
It is absent in about 30% of people.
Nasociliary nerve
The nasociliary nerve is a branch of the ophthalmic nerve. It is intermediate in size between the two other main branches of the ophthalmic nerve, the frontal nerve and the lacrimal nerve, and is more deeply placed.-Path:...
.
It passes through the posterior ethmoidal foramen
Posterior ethmoidal foramen
Lateral to either olfactory groove are the internal openings of the anterior and posterior ethmoidal foramina .The posterior ethmoidal foramen opens at the back part of this margin under cover of the projecting lamina of the sphenoid, and transmits the posterior ethmoidal vessels and nerve....
, with the posterior ethmoidal artery
Posterior ethmoidal artery
The posterior ethmoidal artery is an artery of the head which supplies the nasal septum. It is smaller than the anterior ethmoidal artery.-Course:...
.
It carries sensory information from the sphenoid sinus and posterior ethmoidal air cells
Ethmoid sinus
The ethmoid sinus is each of the two paranasal sinuses within the ethmoid bone, comprising the ethmoidal air cells and filled with air. These are divided into anterior, middle and posterior group. The ethmoidal air cells consist of numerous thin-walled cavities situated in the ethmoidal labyrinth...
.
It is absent in about 30% of people.
External links
- http://www.dartmouth.edu/~humananatomy/figures/chapter_45/45-6.HTM