Summary CRANIAL NERVES I - XII, for anatomy 1st year students with pictures

cranialnerve I ill olfactoryNerve

rigine Ei0 Nasalmucosa
cribriformplate
pathway 1
p olfactory region

2 olfactorynerve

4 olfactorybulb

6 olfactory
trigone
7 olfactorystriae
8 Anteriorcommissure
9 primaryolfactorycortexoftemporallobe sup gyrus
Type sensory specialsons
Function
F sense of smell




cranialnerve 2 lil optic nerve
o retina
C opticcanal
i 1 felines ganglioncells Bipolarcells pigmented epitheliumlayer later
senior
2 opticdisc
3 opticnerve
4 opticcharism
5 optictract
6 Lateral geniculate superior corricolli pulvenir
7 sulcuscolcorrine ofvisualcortex
Nucleus occipitalrobe
N None
type sensory nerve specialsensory
F vision

, nerve
cranial nerve 3 111 oculomotor nerve edingerwestpha
nucleus

midbrain

E superior orbitalfissure




3 Through superiororbitalfissure



5 Inferiorbranch innervates inferiormedialrectus inferioroblique
6 parasympathetic fibers

7 ciliaryganglion
8 shortciliarynerves is parasympatheticfibers innervatesciliarymuscle

andsphincterpapillae

N Nucleusofoculomotornerve innervates extrinsiceye
muscles andlevator poleebroe superioris


andciliarymuscles

mjjjjjj.FI
Type Motor
F Movement of eye andchangingsizeof lens
enes.mn
some
arms
sangria
shortening
as.rs


is.rs
ciliarymuscle medialrectus
levatoreoipebr.ee Inferioroblique




cranial nerve 4 IV Trochelor nerve
0 Midbrain rootis above rhomboidfossaliveofinf collicoli
C superiororbitalfissure
i 1 Above rhomboidfossa
2 circles the midbrain
3 on the lateralwallof cavernous sinus
4 Through superiororbitalfissure
5 To superior obliquemuscle
N Nucleus oftrochlearnerve innervatessuperioroblique
Type Motor ins
women n
superior oblique