Spinal Accessory Nerve

Obliquely inferior and posterior to medial surface of SCM, junction of superior and middle thirds, or within 1 cm above point where greater auricular nerve turns around post. border of SCM known as Erb’s point.

Obliquely inferior and posterior to medial surface of SCM, junction of superior and middle thirds, or within 1 cm above point where greater auricular nerve turns around post. border of SCM known as Erb’s point.