Cranial Nerves: Abnormal Findings

Cranial nerve 11 - Accessory nerve

Video: Cranial nerve 11 weakness

Description: When the patient contracts the muscles of the neck the left sternocleidomastoid muscle is easily seen but the right is absent. Looking at the back of the patient, the left trapezius muscle is outlined and present but the right is atrophic and hard to identify. These findings indicate a lesion of the right 11th cranial nerve.

Source: NeuroLogic Exam (http://library.med.utah.edu/neurologicexam)

Clck the play button to watch the video

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