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The chorda tympani nerve carries its information to the nucleus of solitary tract, and shares this area with the greater petrosal, glossopharyngeal, and vagus nerves. [8] When the greater petrosal and glossopharyngeal nerves are cut, regardless of age, the chorda tympani nerve takes over the space in the terminal field.
Anterior superior alveolar nerve; Auerbach's plexus; Auriculotemporal nerve; Axillary nerve; Brachial plexus; Buccal branch of the facial nerve; Buccal nerve; Cardiac plexus; Cavernous nerves; Cavernous plexus; Celiac ganglia; Cervical branch of the facial nerve; Cervical plexus; Chorda tympani; Ciliary ganglion; Coccygeal nerve; Cochlear nerve ...
The tympanic nerve (Jacobson's nerve) is a branch of the glossopharyngeal nerve passing through the petrous part of the temporal bone to reach the middle ear. It provides sensory innervation for the middle ear, the Eustachian tube, the parotid gland, and mastoid cells. It also carries parasympathetic fibers destined for the parotid gland.
These are the horizontal portion of the facial nerve and the chorda tympani. Damage to the horizontal branch during ear surgery can lead to paralysis of the face (same side of the face as the ear). The chorda tympani is the branch of the facial nerve that carries taste from the ipsilateral half (same side) of the tongue.
Preganglionic fibers en route to the pterygopalatine ganglion (destined to ultimately innervate the lacrimal gland and the mucosal glands of the nose, palate, and pharynx) subsequently form the greater petrosal nerve, whereas those en route to the submandibular ganglion (destined to ultimately innervate the submandibular and sublingual salivary glands) subsequently form the chorda tympani.
The tympanic plexus is a nerve plexus within the tympanic cavity formed upon the promontory of tympanic cavity by the tympanic nerve (branch of the inferior ganglion of glossopharyngeal nerve (CN IX)), and the superior and inferior caroticotympanic nerves (post-ganglionic sympathetic branches of the internal carotid plexus).
V 1 (ophthalmic nerve) is located in the superior orbital fissure V 2 (maxillary nerve) is located in the foramen rotundum. V 3 (mandibular nerve) is located in the foramen ovale. Receives sensation from the face, mouth and nasal cavity, and innervates the muscles of mastication. VI Abducens: Mainly motor Nuclei lying under the floor of the ...
The descending part presents two openings through each of which a branch of the facial nerve passes: the nerve to stapedius enters the canaliculus for nerve to stapedius, and the chorda tympani enters the posterior canaliculus of chorda tympani (canaliculus chordae tympani, or iter chordae posterius [7]). [8]