EXAM 4: Chapter 14 The Nervous System III: The Peripheral Nervous System (PNS) Part 2 CRANIAL NERVES単語カード | Quizlet

S - CN I

olfactory nerves

S - CN II

optic nerves

M - CN III

oculomotor nerves

M - CN IV

trochlear nerves

B - CN V

trigeminal nerves

M - CN VI

abducens nerves

B - CN VII

facial nerves

S - CN VIII

auditory (vestibulocochlear) nerves

B - CN IX

glossopharyngeal nerves

B - CN X

vagus nerves

M - CN XI

accessory nerves

M - CN XII

hypoglossal nerves

function: sensory, smell

passes through: cribriform plate

olfactory nerves (CN I)

anosmia

partial or complete loss of smell (fractured ethmoid bone or lesions of olfactory fibers)

function: sensory, vision

passes through: optic canal

optic nerves (CN II)

anopsias

visual defects

blindness

damage to CN II results in

partial visual loss

damage to the visual pathway, distal to optic chiasma

function: motor, eye movements

passes through: superior orbital fissure

destination: superior, inferior and medial rectus muscles; the inferior oblique muscles; the levator palpebrae superioris muscle, intrinsic eye muscles

oculomotor nerve (CN III)

function: motor, eye movements

passes through: superior orbital fissure

destination: superior oblique muscle

trochlear nerve (CN IV)

oculomotor nerve paralysis

eye cannot be moved up or inward

function: mixed (sensory & motor)

sensory: touch, temp and pain from face

motor: chewing muscles

trigeminal nerve (CN V)

V1: opthalmic

V2: maxillary

V3: mandibular

What are the 3 divisions of the trigeminal nerve?

V1 Ophthalmic

division of the CN V trigeminal nerve

goes through superior orbital fissure

V2 Maxillary

division of the CN V trigeminal nerve

goes through foramen rotundum

V3 Mandibular

division of the CN V trigeminal nerve

goes through foramen ovale

function: motor, eye movement

passes through: superior orbital fissure

destination: lateral rectus muscle

abducens nerves (CN VI)

function: mixed (sensory and motor) chief motor nerves of the face

passes through: internal acoustic meatus

facial nerves (CN VII)

temporal branch

zygomatic branch

buccal branch

mandibular branch

cervical branch

What are the five branches of the facial nerve (CN VII)?

Bell's palsy

paralysis of the facial muscles on affected side, and partial loss of taste sensation

function: sensory, balance and equilibrium and hearing

passes through: internal acoustic meatus

vestibulocochlear nerve (CN VIII)

function: mixed (sensory and motor) swallowing, taste

passes through jugular foramen

glossopharyngeal nerve (CN IX)

function: mixed (sensory and motor)

passes through: jugular foramen

ONLY CN to extend beyond head and neck region

vagus nerve (CN X)

function: motor

passes through jugular foramen

accessory nerve (CN XI)

funtion: motor, tongue movement

passes through: hypoglossal canal

hypoglossal nerve (CN XII)