0071509674.pdf

High-Yield Facts 65

I Cribriform plate Nasal mucosa Olfaction

II Optic canal Retina Vision

III Superior orbital Levator palpebrae Ocular elevation,

fissure superioris, superior depression, adduction,

rectus, medial rectus, pupillary constriction,

inferior rectus, accommodation

inferior oblique

muscles

IV Superior oblique Ocular depression and

muscle abduction

V 1 Superior orbital Forehead, conjunctiva Sensation, afferent limb

fissure of blink reflex

V 2 Foramen rotundum, Mid-face Sensation, afferent limb

infraorbital foramen of sneeze reflex

V 3 Foramen ovale, Jaw, lateral face, Sensation, afferent limb

mandibular foramen, anterior tongue of jaw-jerk reflex,

mental foramen anterior tongue

sensation

Motor to muscles of

mastication

VI Superior orbital Lateral rectus muscle Ocular abduction

fissure

VII Internal acoustic Face, lacrimal, nasal, Motor to muscles of

meatus, facial canal, sublingual, and facial expression and

stylomastoid submaxillary glands efferent limb of blink

foramen reflex; secretomotor

for lacrimation, nasal

and anterior oral

secretion

Taste from anterior part

of tongue

VIII Internal acoustic Cochlear and Audition and balance

meatus vestibular apparatus

COURSE, DISTRIBUTION & PRINCIPAL FUNCTION OF CRANIAL NERVES

CN Foramen Distribution Function

(Continued)