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page image Start Page page image Index page image Glossary of Terms page image Performance Tools page image
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Cranial Nerve V
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Trigeminal Nerve Clinical Notes and Interpretation
  • The jaw reflex is a good indicator of increased tone.
  • CNS lesions will likely involve all 3 divisions of CN V.
  • PNS lesions can involve one or more of the branches.
  • An upper motor neuron lesion (UMNL) will produce little dysfunction due to bilateral innervation to the muscles of mastication .
  • A lower motor neuron lesion (LMNL) will result in paralysis and atrophy of the muscles of mastication.

 

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Section: Cranial Nerve V
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Page 8 of 10
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