The 11th cranial nerve which originates from NEURONS in the MEDULLA and in the CERVICAL SPINAL CORD. It has a cranial root, which joins the VAGUS NERVE (10th cranial) and sends motor fibers to the muscles of the LARYNX, and a spinal root, which sends motor fibers to the TRAPEZIUS and the sternocleidomastoid muscles.

Descriptor ID	D000055
MeSH Number(s)	A08.800.800.120.060
Concept/Terms	Accessory Nerve Accessory Nerve Accessory Nerves Nerve, Accessory Nerves, Accessory Spinal Accessory Nerve Accessory Nerve, Spinal Accessory Nerves, Spinal Nerve, Spinal Accessory Nerves, Spinal Accessory Spinal Accessory Nerves Nerve XI Nerve XIs Nervus Accessorius Accessorius, Nervus Cranial Nerve XI Eleventh Cranial Nerve Cranial Nerve, Eleventh Cranial Nerves, Eleventh Eleventh Cranial Nerves Nerve, Eleventh Cranial Nerves, Eleventh Cranial

Below are MeSH descriptors whose meaning is more general than "Accessory Nerve".

Below are MeSH descriptors whose meaning is related to "Accessory Nerve".

Below are MeSH descriptors whose meaning is more specific than "Accessory Nerve".