Download cranial nerves - People Server at UNCW

Mnemonic
On
Old
Olympus’
Towering
Top
A
Finn
And
German
Viewed
A
Hop
Name
olfactory
optic
oculomotor
trochlear
trigeminal
Abducens
facial
auditory
glossopharyngeal
vagus
accessory
hypoglossal
Number
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
Mnemonic
some
say
marry
money
but
my
brother
says
bad
business
marrying
money
Function(s)
sensory only
sensory only
motor with a small proprioceptive component
motor with a small proprioceptive component
both sensory and motor
motor with a small proprioceptive component
both sensory and motor
sensory only
both sensory and motor
both sensory and motor
motor with a small proprioceptive component
motor with a small proprioceptive component
CRANIAL NERVES
#
NAME
ORIGIN(S)
TERMINATION(S)
FUNCTION(S)
I
olfactory
olfactory epithelium
olfactory bulb on inferior surface
of cerebral frontal lobe
sense of smell only
II
optic
ganglion cell layer of retinal epithelium
thalamus and midbrain
sense of vision only
III
oculomotor
midbrain
levator palpebrae superioris of
motor: movement of eyeball and eyelid, accommodation of lens of near vision,
constriction of pupil
upper eyelid
superior rectus of eyeball
sensory: proprioception for the muscles innervated
inferior rectus of eyeball
medial rectus of eyeball
inferior oblique of eyeball
iris and ciliary muscles of eye
IV
trochlear
midbrain
superior oblique of eyeball
motor: movement of eyeball
sensory: proprioception for muscle innervated
V
trigeminal
pons
muscles of mastication
motor: muscles of mastication
sensory from skin of face and
anterior ½ of scalp, mucosa
sensory: proprioception for muscles of mastication; touch, pain, and temperature from
structures supplied
of nose, mouth, throat; teeth,
surface of eye
VI
abducens
pons
lateral rectus of eyeball
motor: movement of eyeball
sensory: proprioception for muscle innervated
#
VII
NAME
facial
ORIGIN(S)
pons
TERMINATION(S)
muscles of facial expression
lacrimal gland
buccal, submandibular, and
FUNCTION(S)
motor: muscles of facial expression; secretion of saliva and tears
sensory: proprioception from muscles of facial expression, taste
sublingual salivary glands;
sensory from taste buds of
anterior 2/3 of tongue
VIII
vestibulocochlear
(auditory)
vestibular branch from semicircular
ducts, saccule, and utricle of inner
ear
cochlear branch from spiral organ of
vestibular branch -- pons and
cerbbellum
vestibular branch -- sense of equilibrium only
cochlear branch -- sense of hearing only
cochlear branch -- thalamus
Corti of inner ear
IX
glossopharyngeal
medulla
stylopharyngeus muscle of
motor: stylopharyngeus muscle for swallowing; secretion of saliva; gagging
throatparotid salivary glands
sensory from taste buds of
sensory: proprioception from stylopharyngeus; taste from posterior 1/3 of tongue and
posterior 1/3 of tongue
receptors of carotid sinus
palate; touch, pain, and temperature from tongue; regulation of blood pressure
and respiration
somatic sensory from posterior
1/3 on tongue
X
vagus
medulla
muscles of airways, lungs, heart,
esophagus, stomach, small
intestine, most of large intestine, gallbladder; glands of GI
motor: smooth muscle contraction and relaxation of areas innervated; secretion of
digestive juices, decreased force of cardiac muscle contraction, tongue
sensory: sensations from visceral organs supplied; proprioception from muscles
supplied; taste from laryngopharynx
tract named
pancreas
liver
XI
accessory
medulla
spinal cord segments C1 - 6
pharyngeal muscles of
swallowing
spinal portion to sternocleido-
motor: cranial portion mediates swallowing; spinal mediates head movements
sensory: proprioception for muscles involved
mastoid and trapezius
XII
hypoglossal
medulla
extriinsic and intrinsic muscles
of tongue
motor: movement of tongue
sensory: proprioceptions for muscles innervated