Cranial Nerves Flashcards
CN I
S/m/b
name
function
sensory
olfactory
smell
CN II
S/m/b
name
function
sensory
optic
sight
CN III
S/m/b
name
function
Motor
oculomotor
-eye movement, upper eyelid elevation, pupil constriction
CN IV
S/m/b
name
function
Motor
trochlear
-downward and lateral (midline) eye movement
CN V
S/m/b
name
function
Both
Trigeminal
-opthalmic, maxillary, mandibular branches
-face sensation
-motor innervation of chewing muscles and tensor tympani
CN V speech and swallowing contribution
Chewing, bolus sensation
CN VI
S/m/b
name
function
Motor
abducens
downward and lateral (midline) eye movement
CN VII
S/m/b
name
function
Both
Facial
-taste sensation (anterior 2/3 of tongue),
-motor innervation of facial muscles
-lacrimation
-salivation
CN VII speech and swallowing contribution
taste, bolus formation, articulation
CN VIII
S/m/b
name
function
sensory
vestibulocochlear/auditory
hearing, vestibular sensation
CN VIII speech and swallowing contribution
hearing and sound localization
CN IX
S/m/b
name
function
Both
Glossopharyngeal
-taste sensation (posterior 1/3 of tongue)
-sensation from middle ear, upper pharynx, and carotid body, salivation (parotid), motor innervation of stylopharyngeus
CN IX speech and swallowing contributions
taste, salivation, pharyngeal elevation, gag reflex
CN X
S/m/b
name
function
Both
Vagus
sensation from lower pharynx, motor innervation of soft palate, heart, lungs, and digestive tract
CN X speech and swallowing contributions
velum elevation, gag reflex, vocal folds
tension, adduction, and abduction (SLN and RLN)
