Accessory Nerve - The 11th Cranial Nerve - Neuroanatomy

Explore the anatomy and function of the Accessory Nerve, the 11th Cranial Nerve (CN XI), in this comprehensive neuroanatomy video. Discover the two distinct roots of the nerve: the cranial root and the spinal root. Learn about the muscles innervated by the Accessory Nerve, including the trapezius muscle, responsible for shoulder shrugging and arm abduction, and the sternocleidomastoid muscle, which enables head rotation to the opposite side. Gain a deeper understanding of this crucial component of the nervous system and its role in controlling specific muscle movements.