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Cranial Nerve XI
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Accessory Nerve Clinical Notes and Interpretation
  • Care should be taken not to provoke or cause cervical spine symptoms (i.e., joints and contractile, non-contractile, vascular, and neurological tissues must be cleared prior to performing resisted testing).
  • Pathology of the accessory nerve is uncommon.
  • If present, deficits are usually caused by a lower motor neuron lesion.
  • A lower motor neuron lesion will result in deficits of downward and lateral rotation of the scapula and difficulty in turning the head to the opposite side of the lesion; look for atrophy and/or fasciculation in the ipsilateral trapezius.

 

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Section: Cranial Nerve XI
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Page 4 of 5
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