| 1. | The spinal accessory nerve continues alone and heads backwards and downwards.
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| 2. | Optional motor donor nerves are : the masseteric nerve, accessory nerve or hypoglossal nerve.
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| 3. | Traditional descriptions of the accessory nerve divide it into a spinal part and a cranial part.
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| 4. | Injury to the accessory nerve can result in neck pain and weakness of the trapezius muscle.
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| 5. | A winged scapula due to spinal accessory nerve damage will often be exaggerated on arm abduction.
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| 6. | Damage to the accessory nerve ( XI ) will lead to ipsilateral weakness in the trapezius muscle.
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| 7. | A winged scapula may also be suggestive of abnormal spinal accessory nerve function, as described above.
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| 8. | These include the carotid and in some instances the three structures-IJV, SCM and Accessory Nerve.
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| 9. | Injury to the spinal accessory nerve is most commonly caused by medical procedures that involve the head and neck.
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| 10. | The "'accessory nerve "'is a cranial nerve that supplies the sternocleidomastoid and trapezius muscles.
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