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30 Οκτ 2023 · The cranial accessory nerve has a similar function to the vagus nerve. It carries motor innervation to the pharyngeal constrictors, larynx, and muscles of the soft palate (except tensor veli palatini). The spinal accessory nerve is a purely motor entity. It innervates both the trapezius and the sternocleidomastoid muscles.
12 Οκτ 2023 · The accessory nerve is the eleventh paired cranial nerve. It has a purely somatic motor function, innervating the sternocleidomastoid and trapezius muscles. In this article, we shall look at the anatomy of the accessory nerve – its anatomical course, motor functions and clinical correlations.
The spinal part of the accessory nerve is also known as the spinal accessory nerve and it arises from the upper part of the cervical spinal cord from the spinal nerve roots, C1 to C5 or to C6 as well.
21 Νοε 2023 · Your spinal accessory nerve (XI) (SA) is the 11th of 12 pairs of cranial nerves, and it controls the movements of your sternocleidomastoid and your trapezius muscles.
Spinal accessory nerve origin and course. The accessory nerve, also referred to as the spinal accessory nerve, originates from the spinal accessory nucleus located in the posterolateral aspect of the anterior horns of the spinal cord at the levels C1 - C5 (or C6, C7).
12 Απρ 2019 · An overview of the accessory nerve (CN XI), including its course, branches, function, clinical assessment and clinical relevance.
23 Σεπ 2023 · The accessory nerve, also known as the eleventh cranial nerve (CN XI), is a unique cranial nerve that has both cranial and spinal roots. It is primarily a motor nerve, supplying muscles involved in movements of the neck and shoulders.
