Opthalamic Division of CN V Flashcards
What kind of nerve is it and where does it enter from?
sensory nerve and through the SOF
What branches does it have?
- frontal nerve
- lacrimal nerve
- nasociliary nerve
- Infratrochlear nerve
Where does the frontal nerve lie?
above the levator palpebrae superioris in the orbit
What two branches does the frontal nerve divide into?
the supraorbital nerve and the supratrochlear nerve
the supraorbital nerve emerges from where?
emerges onto the face through the supraorbital foramen to be sensory on face
the supra orbital nerve provides sensory innervation to where?
central part of the upper eyelid, forehead, scalp and frontal sinus
the supratrochlear nerve passes where?
above the trochlear pulley of the superior oblique muscle located in the medial aspect of the orbit and emerges onto the face as a sensory nerve
The supratrochlear nerve provides sensory innervation to what?
medial part of upper eyelid & skin of lower forehead near midline
Lacrimal nerve passes above which gland?
The lacrimal gland
The lacrimal nerve provides sensory innervation to what?
lacrimal gland
lateral part of upper eyelid
The nasociliary nerve provides sensory to what?
the nose and eyeball structures
What three branches does the nasociliary give off?
- posterior ethmoidal nerve
- anterior ethmoidal
- long posterior ciliary
the posterior ethmoidal nerve provides sensory innervation to what?
posterior ethmoidal air cell and sphenoid sinus
Anterior ethmoidal nerve provides sensory innervation to what?
ethmoid air cell (medial and lateral), and other branches that pass into the nasal cavity to innervate the nasal septum and lateral nasal wall.
Anterior ethmoidal nerve gives of which terminal branch?
external nasal branch
