Ebook Localization in clinical neurology (7/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Localization in clinical neurology (7/E): Part 2
Ebook Localization in clinical neurology (7/E): Part 2
12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai Ebook Localization in clinical neurology (7/E): Part 2ins motor, sensory, and parasympathetic fibers. The nerve emerges from the posterior lateral sulcus of the medulla oblongata dorsal to the inferior olive in close relation with cranial nerve X (the vagus nerve) and the bulbar fibers of cranial nerve XI (the spinal accessory nerve) (Fig. 12-1 (§1) [1 Ebook Localization in clinical neurology (7/E): Part 21,45]. These three nerves then travel together through the jugular foramen. Within or distal to this foramen, the glossopharyngeal nerve widens at theEbook Localization in clinical neurology (7/E): Part 2
superior and the petrous ganglia and then descends on the lateral side of the pharynx, passing between the internal carotid artery and the internal j12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai Ebook Localization in clinical neurology (7/E): Part 2muscles to reach the base of the tongue.Hypoglossal foramenHypoglossal nerveForamen magnumJugular foramenGlossopharyngealnerve (IX)Vagus nerve (X)Spinal accessory nerve (XI)To sternocleidomastoid and trapezius musclesFigure 12-1 g) Ventral view of medulla and cranial nerves IX, X, and XI exitingThe Ebook Localization in clinical neurology (7/E): Part 2motor fibers originate from the rostral nucleus ambiguus and innervate the stylopharyngeus muscle (a pharyngeal elevator) and (with the vagus nerve) tEbook Localization in clinical neurology (7/E): Part 2
he constrictor muscles of the pharynx.The sensory fibers carried in the glossopharyngeal nerve include taste afferents, supplying the posterior third 12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai Ebook Localization in clinical neurology (7/E): Part 2palate, nasopharynx, and tragus of the ear. By way of the tympanic branch of the glossopharyngeal nerve (Jacobson nerve), sensation is supplied to the tympanic membrane, eustachian tube, and the mastoid region. Taste afferents and general visceral afferent fibers have their cell bodies in the petrou Ebook Localization in clinical neurology (7/E): Part 2s ganglion and terminate mainly in the nucleus of the solitary tract (the rostral terminating fibers convey taste, and the caudal terminating fibers cEbook Localization in clinical neurology (7/E): Part 2
onvey general visceral sensation); exteroceptive afferents have their cell bodies in thesuperior and petrous ganglia and terminate in the spinal nucle12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai Ebook Localization in clinical neurology (7/E): Part 2and carotid sinus (baroreceptors), respectively, by way of the carotid sinus nerve (nerve of Hering).rhe parasympathetic fibers carried in the glossopharyngeal nerve originate in the inferior salivatory nucleus, located in the periventricular gray matter of the rostral medulla, at the superior pole Ebook Localization in clinical neurology (7/E): Part 2of the rostral nucleus of cranial nerve X. These parasympathetic preganglionic fibers leave the glossopharyngeal nerve at the petrous ganglion and traEbook Localization in clinical neurology (7/E): Part 2
vel by way of the tympanic nerve or Jacobson nerve (coursing in the petrous bone) and the lesser superficial petrosal nerve to reach the otic ganglion12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai Ebook Localization in clinical neurology (7/E): Part 2ve, carrying secretory and vasodilatory fibers to the parotid gland.Figure:Hypoglossal foramenHypoglossal nerveForamen magnumJugular foramenGlossopharyngealnerve (IX)Vagus nerve (X)Spinal accessory nerve (XI)To sternocleidomastoid and trapezius musclesVentral view of medulla and cranial nerves IX. X Ebook Localization in clinical neurology (7/E): Part 2, and XI exiting together through the jugular foramen.Dorsal roots of Cl through C6 in the upper cervical spinal cord are also shown.(From Daube JR, REbook Localization in clinical neurology (7/E): Part 2
eagan TJ, Sandok BA. Medical Neurosciences: An Approach to Anatomy, Pathology, and Physiology by System and Levels. 2nd ed. Boston, MA: Little, Brown,12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contai12Cranial Nerves IX and X (The Glossopharyngeal and Vagus Nerves)Anatomy of Cranial Nerve IX (Glossopharyngeal Nerve)The glossopharyngeal nerve contaiGọi ngay
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