Cranial Nerves Flash Cards

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Title: Cranial Nerves
Description: Cranial Nerves and their functions & how to assess
Number of Cards: 12
Save Count: 293
Author: scrubmama14
Created: 2004-04-04
Tags: nursing
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    • Question
    • Answer
    • Side 3
    • Olfactory
    • C.N. I
      Type: Sensory
      Smell
      Assess: Hold soap, coffee, or alcohol pad under nose & ask to identify
    • Optic
    • II
      Sensory
      Visual
      Assess: snellen chart; newspaper/magazine - have them read it; or ask what they see in their room
    • Oculomotor
    • III
      Motor
      Contracts eye muscles to control eye movements; constricts pupil; elevates eyelid.
      Assess: use penlight to assess for PERRLA
    • Trochlear
    • IV
      Motor
      Contracts one eye muscle to control inferomedial eye movement (below & center)
      Assess: PERRLA/follow finger as you point down
    • Trigeminal
    • V
      Sensory & Motor
      Carries impulse of pain, touch, & temperature from face to brain
      (clenching & lateral jaw movements)
      Assess: Clench teeth, Palpate temporal & masseter muscle, perform sharp/dull test on forehead, cheeks,& chin
    • Abducens
    • VI
      Motor
      Lateral eye movements
      Assess: positions test/follow finger or penlight with eyes, without moving head
    • Facial
    • VII
      Sensory & Motor
      Taste on anterior 2/3 of tongue (sweet & salty); stimulates salivary glands & tears; smiling, frowning, & closing eyes
      Assess: Smile, frown, raise eyebrows, puff out cheeks
    • Acoustic/Vestibulocochlear
    • VIII
      Sensory
      Sensory fibers for hearing and balance
      Assess: whisper test, weber test, rinne test
    • Glossopharyngeal
    • IX
      Sensory & Motor
      Taste on posterior 3rd of tongue (sour & bitter) & sensory fibers of pharynx, elicits gag reflex; secretory fibers to parotid glands/swallowing movements
      Assess: Tongue depressor, look at uvula & soft palate & say "AH"; warn client: touch depressor to pharnyx (gag); drink water
    • Vagus
    • X
      Sensory & Motor
      Sensations from throat, larynx, heart, lungs, bronchi, G.I. tract, & abdominal viscera; promotes swallowing, talking, & production of digestive juices
      Assess: same as glossopharyngeal
    • Spinal Accessory
    • XI
      Motor
      Inner neck muscles (SCM,trapezius) that promote movement of shoulders & head rotation; some movement of larynx
      Assess: shrug shoulders against resistance; turn head rt & lt against resistance
    • Hypoglossal
    • XII
      Motor
      Innervates tongue muscle that promotes movement of food & talking
      Assess: stick out tongue, move to rt & lt against depressor (look for tremors); have them say "L,T,D,N"