The eleventh cranial nerve which supplies the muscles in the neck and shoulders.
One of a pair of motor nerves, the eleventh cranial nerves, that supply muscles involved in speech, swallowing, and certain movements of the head and shoulders.
The eleventh cranial nerve (XI), which arise from two roots, cranial and spinal. Fiber from the cranial root travel with the nervy for only a short distance before branching to join the vagus and then forming the recurrent laryngeal nerve, which supplies the internal laryngeal muscles. Fibers from the spinal root supply the stenomastoid and trapezius muscles, in the neck region (front and back).
Either of a pair of motor nerves made up of a cranial part and a spinal part that supplies the trapezius and sternomastoid muscles and the pharynx. The cranial portion joins the vagus to supply motor fibers to the pharynx and larynx.
The eleventh cranial nerve, known as the accessory nerve, differs from the other cranial nerves as it primarily originates from the spinal cord.
The portion of the accessory nerve that originates from the brain is responsible for innervating numerous muscles of the palate, pharynx (throat), and larynx (voice-box). Injuries or damage to this specific segment of the nerve can result in dysphonia (speech difficulties) and dysphagia (swallowing difficulties).
The spinal component of the accessory nerve provides innervation to significant muscles located in the neck and back, particularly the sternomastoid (a muscle extending from the breastbone to the side of the skull) and trapezius (a large, triangular muscle spanning the upper back, shoulder, and neck). Damage to the spinal fibers of the nerve can result in paralysis of these muscles.
The nerve responsible for innervating the sternocleidomastoid and trapezius muscles, also known as the eleventh cranial nerve.