XI Spinal Accessory Nerve
The spinal accessory supplies the trapezius and sternocleidomastoid
- observe for atrophy or asymmetry of the muscles.
- observe for quickness of shoulder shrug and ask
the patient to shrug their shoulders against resistance.
- ask the patient to turn their head to the opposite
side against resistance, both watch and palpate the
- ask the patient to flex their head forward against
resistance, placing your opposite hand against the
back of the head gently to support the patients
neck should there be any weakness.