Cranial Nerve XI (Spinal Accessory)

by Cathy Parkes July 31, 2023

Cranial Nerve XI (Spinal Accessory) controls the sternocleidomastoid and trapezius muscles.
Cranial Nerve XI (Spinal Accessory) controls the sternocleidomastoid and trapezius muscles. Assess the function of this nerve by asking the patient to shrug their shoulders against resistance.

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