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Summary Nur 463 Cranial Nerves Study Guide
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This is a comprehensive and detailed study guide on cranial nerves for Nur 463. *Essential Study Material!!
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Cranial Function Test AbnormalitiesNerve
1 Sense of 1. Test patency by occluding a Anosmia=decreased sense of smell which occurs with
(olfactory smell nostril and ask to sniff smoking, allergic rhinitis, and cocaine use
nerve) 2. Close eyes and ask them to
identify a familiar scent
2 (optic Sense of 1. Confrontation test Papilledema with increased intracranial pressure
nerve) vision 2. Use ophthalmoscope,
examine ocular fundus to Congenital blindness
determine color, size, shape
of the optic disc Cannot test this nerve is lack of patency=stuffy nose due to
3. Peripheral test upper respiratory infection or sinusitis
3 Eye muscles 1. check that palpebral fissures Unequal pupils =increased intracranial pressure
(oculomot are equal in width
or) 2. check pupils for size, should be no strabismus/cross-eye) (PERRLA)
4 regularity, equality, light
(trochlear) reaction, and (no nystagmus/jumping of eyes)
6 accommodation
(abducens) 3. assess cardinal position of ptosis which occurs with dysfunction of cranial nerve 3,
gaze myasthenia gravis, or Horner syndrome)
5 Motor: 1. palpate muscles of Unequal sensation – stroke (sensation is lost on opposite
(trigemina mastication mastication/chewing by side of the lesion
l nerve) Sensory: palpating temporal and
sense of masseter muscles while
touch on person clenches teeth
face 2. touch cotton wisp to person’s
face (should be equal)
7 (facial Motor: facial 1. ask person to smile, frown, Bell’s palsy (affects upper and lower face on one side)
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