Cranial Nerves Flashcards Preview

NPTE Prep > Cranial Nerves > Flashcards

Flashcards in Cranial Nerves Deck (24)
Loading flashcards...
1
Q

CN I

A

Olfactory

Afferent: smell- nose

Test: identify familiar odors

2
Q

CN II

A

Optic

Afferent: sight- eye

Test: test visual fields

3
Q

CN III

A

Oculomotor

Efferent:

  • voluntary: levator of eyelid; superior, medial, and inferior recti; inferior oblique muscle of eyeball
  • autonomic: smooth muscle of eyeball

Test: upward, downward, and medial gaze; reaction to light

4
Q

CN IV

A

Trochlear

Efferent:
- voluntary: superior oblique muscle of eyeball

Test: downward and inward gaze

5
Q

CN V

A

Trigeminal

Afferent: touch,pain- skin of face, mucous membranes of nose, sinuses, mouth, anterior tongue

Efferent:
-voluntary: muscles of mastication

Test: corneal reflex, face sensation, clench teeth; push down on chin to separate jaw

6
Q

CN VI

A

Abducens

Efferent:
- voluntary: lateral rectus muscle of eyeball

Test: lateral gaze

7
Q

CN VII

A

facial

afferent: taste- anterior tongue

efferent:
- voluntary: facial muscles
- autonomic: lacrimal, submandibular, and sublingual glands

8
Q

CN VIII

A

vesibularcochlear

afferent:
- hearing: ear
- balance: ear

Test: hear watch ticking, hearing test, balance and coordination test

9
Q

CN IX

A

Glossopharyngeal

afferent:
- touch, pain: posterior tongue, pharynx
- taste: posterior tongue

efferent:

  • voluntary motor: select muscles of pharynx
  • autonomic: parotid gland

Test: gag reflex, ability to swallow

10
Q

CN X

A

vagus

afferent:

  • touch pain: pharynx, larynx, bronchi
  • taste: tongue, epiglottis

efferent:

  • voluntary: muscles of palate, pharynx, and larynx
  • autonomic: thoracic and abdominal viscera

Test: gag reflex, ability to swallow, say ahh

11
Q

CN XI

A

Accessory

efferent:
- voluntary: SCM and traps

Test: resisted shoulder shrug

12
Q

CN XII

A

Hypoglossal

efferent:
- voluntary: muscles of tongue

Test: tongue protrusion

13
Q

Olfactory Testing

A
  • a positive test may be indicated by inability to identify familiar odors
14
Q

Optic Testing

A
  • therapist asks to identify objects or read selected items from chart
  • positive if inability to identify objects at a reasonable distance
15
Q

Oculomotor Testing

A
  • have patient follow something with eyes as it is moved vertically, horizontally, and diagonally
  • inspect eyes for ptosis
  • positive is indicated by identified tracking deficit, asymmetry or ptosis
16
Q

Trochlear Testing

A
  • have patient follow something with their eyes in the inferior direction
  • positive is indicated by inability to depress the eyes or complaints of diplopia
17
Q

Trigeminal Testing

A
  • therapist uses a cotton of safety pin to alternately touch the face
  • positive sensory is impaired sensation or inability to differentiate between sharp and dull
  • motor is tested by asking patient to perform mandibular protrusion, retrusion, and lateral deviation
  • positive is inability to move mandible to through specific motions
18
Q

Abducens testing

A
  • have patient abduct their eyes without rotating head

- positive is inability to abduct eyes

19
Q

Facial testing

A
  • sensory: ask patient to distinguish sweet and salty substances placed on anterior portion of the tongue
  • positive test is inability to identify salty and sweet
  • motor is tested by performing manual muscle test of muscles involved in facial expression
  • positive test is inability to mimic selected facial expressions
20
Q

Vestibulocochlear Testing

A
  • take a ticking watch toward the patients ear, record distance from ear that patient is able to hear ticking clock
  • positive- is indicted by inability to hear the ticking sound at inches or bilateral difference
  • can also use weber and rinne test (tuning fork)
21
Q

glossoparyngeal testing

A
  • patient touches pharynx with tongue depressor
  • positive is lack of gagging or inability to feel tongue depressor
  • sensory: have patient identify taste placed on posterior tongue
  • positive is inability to distingush tastes, especially sour and bitter
22
Q

vagus testing

A
  • patient touches pharynx with tongue depressor
  • positive is lack of gagging or inability to feel tongue depressor
  • if gag reflex is absent, therapist should assess soft palate and uvula
23
Q

Accessory testing

A
  • test resisted shoulder shrug
24
Q

hypoglossal testing

A
  • have patient protrude tongue

- positive is inability to protrude tongue or tongue deviating to one side