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Accessory nerve (XI) Action: swallowing, head and shoulder movement. Function: motor. Hypoglossal nerve (XII) Action: speech and swallowing. Function: motor. Study with Quizlet and memorize flashcards containing terms like Olfactory nerve (I), Optic nerve (II), Oculomotor nerve (III) and more.
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Name the 12 pairs of cranial nerves; indicate the body regions and structures innervated by each. Describe which are sensory, motor or mixed and know the function of each.
18 Ιαν 2024 · The cranial division is also continuous with the nucleus of the accessory nerve. Spinal Division. Leaves the anterior surface of the upper five segments of the spinal cord between the dorsal and ventral sulci. Function of the Accessory Nerve Innervation. Trapezius muscle; Sternocleidomastoid muscle; Pharyngeal constrictors; Larynx; Muscles of ...
30 Οκτ 2023 · Accessory nerve (lateral-right view) Function. 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.
Cranial nerves relay information between the brain and parts of the body, primarily to and from regions of the head and neck. Depending on definition in humans there are twelve or thirteen cranial nerves pairs, which are assigned Roman numerals I-XII, sometimes also including cranial nerve zero.
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.
17 Ιουλ 2023 · An unusual nerve that contains both cranial and spinal roots. 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.
