Eye Flashcards
Where do blow out fractures occur?
Maxillary bone
specifically the area where the nerve runs through
Action and innervation of L. rectus
Abducts eye
CN VI
Action and innervation of Inf rectus
Depress and adduct eye
CN III
Action and innervation of S. rectus
Elevate and adduct eye
CN III
Actionand innervation of Med. rectus
adduct eye
CN III
Action and innervation of Sup. oblique
depress and abduct eye
CN IV
Action and innervation of Inf. oblique
Elevate and abduct eye
CN III
Action and innervation of Levator palpebrae
elevate upper lid
CN III
What muscles would be used to move the eye straight up or straight down?
*Potential exam Q*
Moving the eye up: Sup. rectus, inf. oblique
Moving the eye down: Inf. rectus, Sup. oblique
What travels through the sup orbital fissure?
- CN III
- CN IV
- CN V1 branches
- Lacrimal N
- Frontal N
- Supraorbital
- Supratroch.
- Nasociliary N
- Ciliary N
- A+P Ethmoidal
- CN VI
- Ophthalmic vein
What travels through the optic canal?
- CN II
- Opthalmic A.
- Supraorbital A.
- Supratroch. A
- A+P ethmoidal aa
- Central A of retina
- Ciliary aa to sclera and choroid
- lacrimal A.
What drains into opthalmic vein?
Facial vein
Supraorbital vein
supratrochlear v
Where does opthalmic vein drain into?
Cavernous sinus
Branches of V1
Lacrimal N
Frontal N
- Supraorbital N. - Supratrochlear N.
Nasociliary N
- Ciliary N. - A+P ethmoidal NN
Cranial parasympathetics travel with which CN after leaving pons?
III, IV, IX, X