where does the spinal accessory nerve come from
Accessory nerve The accessory nerve is derived from the basal plate of the embryonic spinal segments C1â€“C6.
Small intestine Food from the stomach is allowed into the duodenum through the pylorus by a muscle called the pyloric sphincter.
Swallowing 5) Closure of the nasopharynx
Accessory nerve disorder Injury to the spinal accessory nerve can cause an accessory nerve disorder or spinal accessory nerve palsy, which results in diminished or absent function of the sternocleidomastoid muscle and upper portion of the trapezius muscle.