Cranial Nerves
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| smell | CN I
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| sight | CN II
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| muscle to levator palpebrae | III
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| sphincter papillae (light reflex) | III
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| ciliary muscle (lens focusing) | III
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| superior oblique eye muscle | IV
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| muscle of mastication | mainly V, but also XII
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| sensory of face | V
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| superior rectus, medial rectus, inferior rectus, inferior oblique | III
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| lateral rectus muscle of eye | VI
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| lesion can cause double vision | VI
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| lesion can cause medial deviation of eye | VI
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| facial expression | VII
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| stapedius muscle (sound dampening) | VII
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| lesion can cause facial paralysis | VII
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| lesion can cause hyperacusis | VII
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| mcous to hard/soft palate | VII
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| lacrimal glands | VII
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| salivayr glands | VII
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| mucous membbranes of nose | VII
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| anterior 2/3 of tongue taste | VII
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| skin of earwall of acoustic meatus | VII
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| external tympanic membrane | VII
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| primary auditory | VIII
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| balance and motion | VIII
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| elevates pharynx via stylopharyngeus | IX
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| responsible for gag reflex | IX
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| posterior 1/3 of tongue | IX
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| receives info from carotid body (oxygen levels) and carotid sinus (BP) | IX
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| lesion can produce difficulty swallowing | IX AND X
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| lesion can cause hoarseness | X
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| responsible for cough reflex | X
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| base of tongue taste | X
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| test by rotation of head | XI
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| test by shrugging of shoulders | XI
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| responsible for intrinsic and most extrinsic muscles of tongue (tongue movements) | XII
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| lesion can cause problem with speech | XII
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| innervate striated constrictor muscles of the pharynx, the palatine muscles (except for tensor veli palatini) | X
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| intrinsic laryngeal muscles | X
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| striated upper half of esophagus | X
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| thoracic and abdominal viscera | X
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| taste and sensation from epiglottis | X
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| trachea | X
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| bronchi | X
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| heart | X
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| digestive system to splenic flexure of the colon | X
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| general (not pain) sensation from thoracic and abdominal viscera | X
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| baroreceptors in aortic arch | X
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| chemoreceptors in aortic body | X
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| skin of external ear | X
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| external auditory canal | X
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| external surface of tympanic membrane | X
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| sensation from larynx | X
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| lower pharynx | X
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| turning head side to side | XI
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| shrugging shoulders | XI
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| lesion sometimes affect and process of mastication | XII
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| motor to pharyngeal arch | VII
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| meninges of posterior cranial fossa | X
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| enters brainstem at cerebellopontine angle | VIII
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Created by:
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