Mechanism of Right Spinal Accessory Nerve Injury

SKU: C13002

This exhibit depicts the mechanism of the right spinal accessory nerve injury during lymph node removal surgery. The spinal accessory nerve is a cranial nerve that controls the sternocleidomastoid and trapezius muscles. It traverses posteroinferiorly through the neck, adjacent to lymph node pathways. During lymph node removal, excessive dissection pressure damages the spinal accessory nerve, causing the trapezius to atrophy. The scapula droops as a result and impinges the long thoracic nerve, damaging the serratus anterior muscle.

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