Quizlet Cranial Nerves and Actions

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  1. CN I Olfactory: Sensory: smell (close eyes and smell object)
  2. CN II Optic: Sensory: Vision (Read time off clock, light test)
  3. CN III Occulomotor: Motor: muscles that move eye, ciliary muscle, sphincter of pupil (ciliospinal, light, consensual)
  4. CN IV Trochlear: Motor: muscles that move the eye diagonally (corneal)
  5. CN IX Glossopharyngeal: Sensory: Taste of posterior 1/3 of tongue and pharyngeal walls (gag reflex, touch sides of mouth with cotton swab). Motor: Pharyngeal muscles (Gag Reflex)
  6. CN V Trigeminal: Sensory: touch to skin of face, teeth, gums, jaw (poke skin and identify when they feel it). Motor: Muscles of Mastication (clench teeth)
  7. CN VI Abducens: Motor: moves eye left and right (corneal)
  8. CN VII Facial: Sensory: Taste of anterior 2/3 Tongue (pepsi vs coke test). Motor: Muscles of face such as puckering lips, winking the eye, smile
  9. CN VIII Vestibularcochlear: Sensory: Hearing, balance, equilibrium (close eyes and tell which side has pen clicking by it)
  10. CN X Vagus: Sensory: Visceral organ sensory of heart, lungs, trachea, GI tract, pharynx, larynx (feel throat structures when swallowing). Motor: skeletal muscles of swallowing, visceral organs, muscles of vocal cords (swallowing, Gag Reflex)
  11. CN XI Spinal Accessory: Motor: Muscles of neck that move head (push against head and resist the force)
  12. CN XII Hypoglossal: Motor: Muscles of the tongue (stick tongue out, move around)