Accessory nerve function. The cranial root merges with the vagus nerve and supplies motor function to the soft palate, pharynx, and larynx, while the spinal root innervates the sternomastoid and trapezius muscles. Surgical options comprise nerve surgery, nerve grafting, and nerve regeneration. Find out how it can be damaged and what are the clinical signs and symptoms of accessory nerve palsy. Other treatment options include tendon or muscle transfer to stabilise the scapula, employed for patients not responding to nerve repair or surgery. Accessory Nerve supplies all the intrinsic muscles of the larynx through superior and recurrent laryngeal nerves (branches of the vagus nerve). It carries motor innervation to the pharyngeal constrictors, larynx, and muscles of the soft palate (except tensor veli palatini). Feb 7, 2025 · Accessory Nerve supplies all the muscles of the pharynx through the pharyngeal plexus except the stylopharyngeus, which is supplied by the glossopharyngeal nerve. Jun 11, 2025 · The accessory nerve provides motor function (movement) to two muscles essential to neck and shoulder movement, the sternocleidomastoid (SCM) and the trapezius, as well as to the larynx (voice box) and other structures in the throat. It is derived from the spinal cord and the medulla, and has a variable cranial component that joins the vagus nerve. Conclusions: The accessory nerve continues to be a topic of much discussion regarding its exact function and in particular to its cranial roots. Learn about its role in motor function and the diagnosis and management of associated disorders. Oct 12, 2023 · Learn about the anatomy and function of the accessory nerve, the eleventh cranial nerve that innervates the sternocleidomastoid and trapezius muscles. It innervates the sternocleidomastoid and trapezius muscles. The Accessory Nerve, in the field of Neuroscience, is a branchiomotor nerve with both spinal and cranial roots that originate separately and join briefly in the jugular foramen. That […]. Nov 21, 2023 · Define spinal accessory nerve. accessorius), or the 11th cranial nerve (CN XI). Sep 7, 2023 · Explore the anatomy, functions, and clinical significance of Cranial Nerve 11 (Accessory Nerve) in neuroanatomy. According to the generally accepted classification of functional components, it contains general somatic efferent fibers (GSE) and special visceral efferent fibers (SVE). Learn accessory nerve anatomy and function, gaining an understanding of the cranial accessory nerve and accessory In this note, we are going to discuss the anatomy and function of the accessory nerve (n. The accessory nerve is a cranial nerve that innervates the sternocleidomastoid and trapezius muscles. In this comprehensive guide, we will explore the functions, disorders, and available treatments related to the accessory nerve to provide you with a better understanding of its importance and potential challenges you may face. Oct 30, 2023 · The cranial accessory nerve has a similar function to the vagus nerve. AI generated definition based Apr 12, 2019 · An overview of the accessory nerve (CN XI), including its course, branches, function, clinical assessment and clinical relevance. Apr 16, 2018 · Included in this review, we mention variant anatomy, molecular development, histology, and imaging of the accessory nerve. Jul 17, 2023 · The accessory spinal nerve or XI cranial nerve is essential for neck and shoulder movement, the intrinsic musculature of the larynx, and the sensitive afferences of the trapezius and sternocleidomastoid musculature. zztxx ombzuoj einvyi gblrv wzglh kdob gwmync cgiat yga ugqjmqi