quiz 2 flashcards pt 2

CN I

olfactory nerve

CN II

optic nerve

CN III

oculomotor

CN IV

trochlear

CN V

trigeminal nerve

CN VI

abducens nerve

CN VII

facial nerve

CN VIII

vestibulocohlear nerve

CN IX

glossopharyngeal nerve

CN X

vagus nerve

CN XI

accessory nerve

CN XII

hypoglossal nerve

what type of nerve is CN I - olfactory

sensory

what type of nerve is CN II - optic

sensory

what type of nerve is CN III - oculomotor

motor

what type of nerve is CN IV - trochlear

motor

what type of nerve is CN V - trigeminal

mixed

what type of nerve is CN VI - Abducens

motor

what type of nerve is CN VII - Facial

mixed

what type of nerve is CN VIII - vestibulocochlear

sensory

what type of nerve is CN IX - glossopharyngeal

mixed

what type of nerve is CN X - vagus

mixed

what type of nerve is CN XI - accessory

motor

what type of nerve is CN XII - hypoglossal

motor

CN I - Olfactory nerve exits through what foramen

olfactory foramina

CN II - optic nerve exits through what foramen

optic canal

CN III - oculomotor nerve exits through what foramen

superior orbital fissure

CN IV - trochlear nerve exits through what foramen

superior orbital fissure

CN V1 - ophthalmic (trigeminal) nerve exits through what foramen

superior orbital fissure

CN V2 - maxillary (trigeminal)

foramen rotundum

what three nerves make up the trigeminal nerve

V1 opthalmic, V2 maxillary, V3 mandibular

CN V3 - mandibular (trigeminal) nerve exits through what foramen

foramen ovale

CN VI - abducens nerve exits through what foramen

superior orbital fissure

CN VII - facial nerve exits through what foramen

stylomastoid foramen

CN VIII - vestibulocochlear nerve exits through what foramen

internal acoustic meatus

CN IX - glossopharyngeal nerve exits through what foramen

jugular foramen

CN X - vagus nerve exits through what foramen

jugular foramen

CN XI - accessory nerve exits through what foramen

jugular foramen

CN XII - hypoglossal nerve exits through what foramen

hypoglossal canal

primary function of CN I - olfactory nerve

smell

primary function of CN II - optic nerve

vision

primary function of CN III - oculomotor nerve

eye movement, pupil constriction, eyelid elevation

primary function of CN IV - trochlear nerve

eye movement (superior oblique muscle)

what muscle does the trochlear nerve primarily innervate

superior oblique muscle

primary function of CN V - trigeminal nerve

facial sensation; mastication

primary function of CN VI - abducens nerve

eye movement (lateral rectus muscle)

what muscle does CN VI - abducens primarily innervate

lateral rectus muscle

primary function of CN VII - facial nerve

facial expression; taste (anterior 2/3 of tongue)

what muscle does CN VII - facial nerve primarily innervate

anterior 2/3 of tongue

primary function of CN VIII - vestibulocochlear nerve

hearing and balance

primary function of CN IX - glossopharyngeal

taste (posterior 1/3 tongue); swallowing

what muscle does CN IX - glossopharyngeal nerve primarily innervate

posterior 1/3 of tongue

primary function of CN X - vagus nerve

swallowing, speech, parasympathetic organ control

primary function of CN XI - accessory nerve

neck and shoulder movement (SCM, trapezius)

what muscle does CN XI - accessory nerve primarily innervate

SCM, trapezius

primary function of CN XII- hypoglossal nerve

tongue movement

fracture of ethmoid bone or lesions of olfactory fibers may result in waht

anosmia (loss of smell)

damage to CN II - optic nerve results in what

anopsia (visual defects), blindness

damage to CN III - oculomotor nerve paralysis leads to what

inability to move eye up, down, or inward; eye rotates laterally at rest, upper eyelid drooping, double vision

damage to CN IV - trochlear nerve can lead to what

diplopia (double vision), impairs ability to rotate eye inferolaterally

inflammation of what nerve is widely considered to produce most excruciating pain known

CN V - trigeminal nerve

paralysis of CN VI - abducens nerve can lead to what

eye cannot move laterally and rotates medially at rest

what condition arises from paralysis of CN VII - facial nerve

Bell’s Palsy

damage to cochlear division of CN VIII - vestibulocochlear can lead to what

deafness

damage to vestibular division of CN VIII - vestibulocochlear nerve can lead to what

dizziness, rapid involuntary eye movements, loss of balance, nausea, vomiting

damage to CN IX - glossopharyngeal nerve can lead to what

impaired swallowing, taste

damage to CN X - vagus nerve can lead to what

loss of voice, difficulty swallowing, impaired digestive motility

damage to CN XI - accessory nerve can lead to what

SCM paralysis, head rotates to injured side; difficult shoulder shrugging

damage to CN XII - hypoglossal nerve can lead to what

difficulty with speech and swallowing

ipsilateral hypoglossal nerve damage leads to what

tongue deviates toward affected side

bilateral hypoglossal nerve damage leads to what

inability to protrude tongue