Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Year 2: Neuromuscular > Test 1: Cranial Nerves > Flashcards

Test 1: Cranial Nerves Flashcards

1
Q

CN I name, function, test

A

olfactory

smell

have pt identify familiar smells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

CN II name, function, test

A

optic

vision

read close and distant items

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

CN III name, function, test

A

oculomotor

eye movement/pupil reflex

eye tracking in all directions, pupillary response to light

  • damaged = eye slightly depressed and rotated toward nose
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

CN IV name, function, test

A

trochlear

superior oblique eye muscle innervation

observe eye position at rest; elevated if there is a problem

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

CN V name, function, test

A

trigeminal

muscles of mastication and face sensation

observe jaw motion, can palpate temporalis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

CN VI name, function, test

A

abducens

lateral rectus of eye innervation

look at eye movement,

** damaged = cant look outward

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

CN VII name, function, test

A

facial

muscles of facial expression, taste to anterior 2/3 of tongue

look for facial asymmetries, observe motions; taste with common liquids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

CN VIII name, function, test

A

vestibulocochlear

hearing and vestibular

rub test next to ear; tuning fork; observe balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

CN IX name, function, test

A

glossopharyngeal

sensation and tasts to posterior tongue and pharynx

ask about swallowing, gag reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

CN X name, function, test

A

vagus

innervates epiglottis and larynx, parasympathetic innervation of internal organs

voice hoarsness with increased HR and RR are signs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

CN XI name, function, test

A

acessory n

trapezius and SCM innervation

observe quality of shoulder shrug and turn head both ways

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

CN XII name, function, and test

A

hypoglossal

tongue muscles

observe tongue protrusion and mobility

** lateral movement indicates unilateral lesion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

pneumonic for sensory, motor, or both function of cranial nerves

A

Some
Say
Marry
Money
But
My
Brother
Says
Big
Brains
Matter
More

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what SPECIAL senses do cranial nerves control

A

taste
vision
hearing
smell
balance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

CNs are most likely injured how

A

fx to base of cranium
head trauma/excessive brain movement
compression from tumor, aneurysm, or inflammation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how does scent travel through the olfactory n

A

nasal chemoreceptors to the olfactory bulb

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

How does vision travel via the optic n

A

from retina to thalamus to other projections to the visual cortex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

describe the 2 tests for optic n

A

visual acuity = snellen chart; quadrant test of each eye

pupillary light reflex = shine light in one eye and see of both eyes constrict

19
Q

specific function of occulomotor n

A

medial inferior, superior rectuc, and levator palpebrae muscles innervation

constriction of pupil

20
Q

tests for occulomotor n (CN III)

A

visual oculomotor = H test; smooth pursuits; convergence/divergence

pupillary light reflex testing

observe for ptosis (droopy eyelid)

21
Q

specific function of CN IV trochlear

A

medial/downward eye movement

innervates superior oblique m

22
Q

test for CN IV trochlear n

A

visual oculomotor test (H test)

smooth pursuit inferiorly

23
Q

specific function of CN V trigeminal

A

sensory for face, eye, anterior ear

touch sensation only of anterior 2/3 of tongue

muscles for mastication

24
Q

what are the 3 branches of the trigeminal n

A

1 = opthalamic
2= maxillary
3= mandibular

25
Q

tests for the trigeminal n

A

sensory testing of face; pinprick and light touch

resisted opening of jaw/palpation of mastication muscles

corneal blink reflex (touch cornea)

jaw jerk reflex; strike finger on pt jaw and observe for movement; no movement is normal

26
Q

specific function of CN VI abducens

A

innervates lateral rectus

lateral eye movement

26
Q

tests for CN VI abducens

A

visual oculomotor test (H test)

smooth pursuit laterally

26
Q

specific function of CN VII facial

A

motor for facial n

sensory for special sensory taste of anterior 2/3 of tongue

ANS: tearing/salvation

26
Q

tests for CN VII facial; injury to this n is called what?

A

muscles of face- look for symmetry: smile, show teeth, puff cheeks, raise eyebrows, frown

taste foods on tip of tongue; sweet, sour, salty, and bitter

**injury to this n is called bells palsy

26
Q

specific function of CN VIII vestibulocochlear

A

vestibular branch = head position
cochlear = sound

special sense of hearing and equilibrium

27
Q

tests for CN VIII vestibulocochlear n

A

cochlear branch:
-fingertip rub by ear
-weber test - tuning fork on top of head
-rinne test - tuning fork on mastoid process

vestibular branch
-VOR testing - i.e. head thrust
-caloric testing

28
Q

CN IX glossopharyngeal specific function

A

touch sensation to posterior 2/3 of tongue

special sensory taste to posterior 2/3

innervates pharyngeal muscle and parotid salivary gland

29
Q

tests for CN IX glossopharyngeal

A

gag reflex
-afferent signal
-touch pharynx

taste of posterior tongue

30
Q

function of CN X vagus

A

throat and visceral muscles and sensory nerves

larynx, pharynx, and viscera

ANS control of throat, lungs, heart, GI, pancreas, gall bladder

important for flight or fight

31
Q

tests for CN X vagus

A

phonation
-have pt say ah
-check for deviation of uvula

gag/swallow
-efferent/motor response of muscles
-observe swallow on command

32
Q

CN XI specific function

A

innervates trapezius and SCM

33
Q

test for CN XI accesssory

A

muscle resistance

check for asymmetry
-resisted shoulder shrug
-resisted head RT

34
Q

specific function of CN XII

A

innervates muscles of tongue

ipsilateral muscles

35
Q

tests for CN XII hypoglossal

A

stick tongue out; look for deviation (weakness is on side it deviates to)

LMN injury; being pushed to ipsilateral weaker side by contralateral/stronger side

UMN injury; stroke will deviate to OPPOSITE side (i.e. R side CVA = L side deviation)

36
Q

explain this difference between UMN and LMN injury that results in a R side facial droop

A

Injury to the L CNS could cause a R side facial droop; pt would still have some input just not a full smile

injury to CN VII in the PNS would also lead to a R side facial droop; pt would not be able to move R side at all. No input present for facial muscles

37
Q

when is CN VII vulnerable to compression

A

when a viral infection produces inflammation and swelling of the n just before emerging from the stylomastoid foramen

38
Q

what should be the response to the pupillary light reflex in a healthy person

A

if you shine a light in one eye, both eyes constrict

39
Q

steps involved in the pupillary light reflex

A

Light picked up by CN II (ipsilateral side)

goes to brain for processing

goes to CN III on both sides

CN III causes pupils to constrict

40
Q
A

Year 2: Neuromuscular (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions