Tympanic nerve - Factbites

Tympanic nerve - Factbites
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Topic: Tympanic nerve

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	Glossopharyngeal Nerve IX
		The tympanic nerve leaves the skull via the jugular foramen and re-enters the skull through the inferior tympanic canaliculus and reaches the tympanic cavity where it forms a plexus in the middle ear cavity.
		The glossopharyngeal nerve exits the brain stem as a series of nerve rootlets from the anterior surface of the medulla oblongata between the olive and inferior cerebellar pedicule.
		The nerve consists of a large afferent component from the skin of the external ear, the pharynx, posterior one-third of the tongue, carotid sinus (baroreceptor - sensitive to changes in blood pressure) and the carotid body (chemoreceptors - sensitive to hydrogen ion concentration of the blood).
	www.city.ac.uk /optometry/Biolabs/cranial%20nerves/Glossopharyngeal%20Nerve%20IX.htm (647 words)

	The Ear
		The facial nerve (CN VII) by the branches from the tympanic plexus.
		(a branch of the facial nerve, CN VII); and the tympanic plexus of nerves.
		The external surface of the tympanic membrane is supplied by the auriculotemporal nerve.
	www.geocities.com /medinotes/ear.htm (1335 words)

	Glossopharyngeal Nerve
		The tympanic nerve is a branch that is occurs prior to exit the skull.
		The tympanic nerve exits the jugular foramen and passes by the inferior glossopharyngeal ganglion.
		Nerve fibers from this nucleus join the other components of the ninth nerve during their exit from the brain stem.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn9.htm (411 words)

	Arch Otolaryngol Head Neck Surg -- Abstract: Experimental Study on Facial Nerve Regeneration With or Without Geniculate Ganglionectomy, April 2001, Wang et al. 127 (4): 422
		Interventions A 2-mm tympanic segment of the facial nerve
		nerve following nerve grafting within the tympanic segment with
		was removed, and the greater auricular nerve was harvested for
	archotol.ama-assn.org /cgi/content/abstract/127/4/422 (411 words)

	Left Temporal Bone
		IAC: Internal Auditory Canal with the Vestibulocochlear (VIII) Cranial Nerve; V: Vestibule; VII: Facial Nerve; TM: Tympanic Membrane (Ear Drum); PSCC: Posterior Semicircular Canal; HSCC: Horizontal Semicircular Canal; CA: Carotid Artery; EAC: External Auditory Canal; Stapes; I: Incus (lenticular process); Malleus; Cochlea
		IAC: Internal Auditory Canal with the Auditory (VIII) Cranial Nerve; V: Vestibule; CC: Crus Commune; VII: Facial Nerve; TM: Tympanic Membrane (Ear Drum); PSCC: Posterior Semicircular Canal; HSCC: Horizontal Semicircular Canal; Stapes; Incus (long process); Malleus; Cochlea
		Excellent Example of the Auditory and Vestibular Division of the VIII (Vestibulocochlear) Cranial Nerve and Horizontal Portion of the VII (Facial) Cranial Nerve.
	www.ear-anatomy.com /left_temporal_bone.htm (411 words)

	Vagus Nerve
		The general sensory components of the tenth cranial nerve conduct sensation from the larynx, pharynx, skin the external ear and external auditory canal, external surface of the tympanic membrane, and the meninges of the posterior cranial fossa.
		The vagus nerve is the longest of the cranial nerve.
		The viscerosensory component of the vagus are derived from nerves that have receptors in the abdominal viscera, esophagus, heart and aortic arch, lungs, bronchia and trachea.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (703 words)

	Glossopharyngeal Nerve
		The tympanic nerve is a branch that is occurs prior to exit the skull.
		Nerve fibers from this nucleus join the other components of the ninth nerve during their exit from the brain stem.
		The ninth cranial nerve exits the brain stem as a the most rostral of a series of nerve rootlets that protrude between the olive and inferior cerebellar peduncle.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn9.htm (411 words)

	Vagus Nerve
		The general sensory components of the tenth cranial nerve conduct sensation from the larynx, pharynx, skin the external ear and external auditory canal, external surface of the tympanic membrane, and the meninges of the posterior cranial fossa.
		The vagus nerve is the longest of the cranial nerve.
		The superior laryngeal nerve branches distal to the pharyngeal branch and descends lateral to the pharynx.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (411 words)

	Vagus Nerve
		The general sensory components of the tenth cranial nerve conduct sensation from the larynx, pharynx, skin the external ear and external auditory canal, external surface of the tympanic membrane, and the meninges of the posterior cranial fossa.
		The vagus nerve is the longest of the cranial nerve.
		The viscerosensory component of the vagus are derived from nerves that have receptors in the abdominal viscera, esophagus, heart and aortic arch, lungs, bronchia and trachea.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (703 words)

	Ear.doc
		This nerve is not close to the tympanic membrane The glossopharyngeal nerve and lesser petrosal nerve are associated with the promontory of the ear, which is on the medial wall of the middle ear.
		The parotid gland is innervated by the lesser petrosal nerve, a branch of the glossopharyngeal nerve (CN IX).
		The greater petrosal nerve is a branch of the facial nerve that arises adjacent to the geniculate ganglion.
	www-personal.umich.edu /~benwei/cgi-data/shared/linked/Ear.doc (2295 words)

	Ear.doc
		This nerve is not close to the tympanic membrane The glossopharyngeal nerve and lesser petrosal nerve are associated with the promontory of the ear, which is on the medial wall of the middle ear.
		The parotid gland is innervated by the lesser petrosal nerve, a branch of the glossopharyngeal nerve (CN IX).
		The greater petrosal nerve is a branch of the facial nerve that arises adjacent to the geniculate ganglion.
	www-personal.umich.edu /~benwei/cgi-data/shared/linked/Ear.doc (2295 words)

	eMedicine - Schwannoma, Cranial Nerve : Article by Mahesh Jayaraman, MD
		The facial nerve enters the labyrinth (labyrinthine segment), courses anteriorly in the temporal bone to the geniculate ganglion, turns posteriorly to pass beneath the lateral semicircular canal (tympanic segment) and then inferiorly to course through the mastoid (vertical segment), and exits the temporal bone via the stylomastoid foramen.
		From the trochlear nucleus in the midbrain, fibers of the trochlear nerve (ie, CN IV) cross the midline dorsal to the cerebral aqueduct and exit the midbrain dorsally.
		The hypoglossal nerve (CN XII) is formed by the fusion of multiple rootlets that emerge from the ventrolateral sulcus between the medullary olive and pyramid.
	www.emedicine.com /radio/topic7.htm (4023 words)

	eMedicine - Schwannoma, Cranial Nerve : Article by Mahesh Jayaraman, MD
		The facial nerve enters the labyrinth (labyrinthine segment), courses anteriorly in the temporal bone to the geniculate ganglion, turns posteriorly to pass beneath the lateral semicircular canal (tympanic segment) and then inferiorly to course through the mastoid (vertical segment), and exits the temporal bone via the stylomastoid foramen.
		From the trochlear nucleus in the midbrain, fibers of the trochlear nerve (ie, CN IV) cross the midline dorsal to the cerebral aqueduct and exit the midbrain dorsally.
		The hypoglossal nerve (CN XII) is formed by the fusion of multiple rootlets that emerge from the ventrolateral sulcus between the medullary olive and pyramid.
	www.emedicine.com /radio/topic7.htm (4023 words)

	Dorlands Medical Dictionary
		auriculotempora´lis [TA] auriculotemporal nerve: origin, by two roots from the mandibular nerve; branches, anterior auricular nerve, nerve of external acoustic meatus, parotid branches, branch to tympanic membrane, and branches communicating with facial nerve; its terminal branches are superficial temporal to the scalp; distribution—see individual branches, in this table and under ramus; modality, general sensory.
		Origin, trigeminal ganglion; branches, meningeal ramus, zygomatic nerve, posterior superior alveolar rami, infraorbital nerve, pterygopalatine nerves, and, indirectly, the branches of the pterygopalatine ganglion; distribution, extensive distribution to skin of face and scalp, mucous membrane of maxillary sinus and nasal cavity, and teeth—see individual branches, in this table and under ramus; modality, general sensory.
		hypoglos´sus [TA] hypoglossal nerve: twelfth cranial nerve; origin, several rootlets in the anterolateral sulcus between the olive and the pyramid of the medulla oblongata; it passes through the hypoglossal canal to the tongue; branches, lingual rami; distribution, styloglossus, hyoglossus, and genioglossus muscles and intrinsic muscles of the tongue; modality, motor.
	www.mercksource.com /pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_n_05zPzhtm (3992 words)

	Study table about Mandibular Nerve
		branches from the mandibular nerve, purely sensory to the external ear, ear canal, and part of tympanic membrane, and part to parotid gland, can be involved in mumps
		mandibular nerve, somatic sensory to the anterior 2/3 of the tongue, associated with facial nerve in the chorda tympani
		MIXED NERVE from Mandibular Nn (carries somatic motor to the anterior dig, mylohyoid via the Nn to mylohyoid) and sensory to all of the lower teeth & finally sensory to the upper lip and chin via the Mental nn
	www.studystack.com /studytable-20909 (690 words)

	PHARYNX & LARYNX
		course in tympanic nerve and in lesser petrosal nerve
		mucosa innervated by branches of glossopharyngeal nerve that course in PHARYNGEAL PLEXUS
		Uses sensory fibers of glossopharyngeal nerve in orogharyngeal mucosa and motor fibers of vagus nerve
	2006.jetsetelective.com /2006/study/PHARYNX.htm (1030 words)

	References
		Tekdemir I, Aslan A, Tuccar E, et al: An anatomical study of the tympanic branch of the glossopharyngeal nerve (nerve of Jacobson).
		The Microsurgical Anatomy of the Glossopharyngeal Nerve With Respect to the Jugular Foramen Lesions
		Tanaka S, Mizukami S: Vagal communicating branches between the facial and glossopharyngeal nerves, with references to their occurrence from the embryological point of view.
	www.medscape.com /content/2004/00/48/90/489074/489074_ref.html (907 words)

	Vagus Nerve
		The general sensory components of the tenth cranial nerve conduct sensation from the larynx, pharynx, skin the external ear and external auditory canal, external surface of the tympanic membrane, and the meninges of the posterior cranial fossa.
		The vagus nerve is the longest of the cranial nerve.
		The nerve exits the brain stem through rootlets in the medulla that are caudal to the rootlets for the ninth cranial nerve.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (907 words)

	Vagus Nerve
		The general sensory components of the tenth cranial nerve conduct sensation from the larynx, pharynx, skin the external ear and external auditory canal, external surface of the tympanic membrane, and the meninges of the posterior cranial fossa.
		The vagus nerve is the longest of the cranial nerve.
		The nerve exits the brain stem through rootlets in the medulla that are caudal to the rootlets for the ninth cranial nerve.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (907 words)

	PHARYNX & LARYNX
		course in tympanic nerve and in lesser petrosal nerve
		Internal branch of superior laryngeal nerve of VAGUS and superior laryngeal artery course in wall of piriform recess
		mucosa innervated by branches of glossopharyngeal nerve that course in PHARYNGEAL PLEXUS
	2006.jetsetelective.com /2006/study/PHARYNX.htm (907 words)

	Glossopharyngeal Nerve
		The tympanic nerve is a branch that is occurs prior to exit the skull.
		Nerve fibers from this nucleus join the other components of the ninth nerve during their exit from the brain stem.
		The ninth cranial nerve exits the brain stem as a the most rostral of a series of nerve rootlets that protrude between the olive and inferior cerebellar peduncle.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn9.htm (907 words)

	Joan C. Edwards School of Medicine - Marshall University, Huntington, WV
		The Tympanic branch of the Glossopharyngeal nerve innervates the auditory tube.
		It is normally a branch of the Anterior division of the Mandibular division of the Trigeminal nerve (V3).
		The scalp overlying the posterior calvarium is innervated by the Greater Occipital nerve, which is derived from the dorsal ramus of C2.
	musom.marshall.edu /oldsite/ana/grosshom/exam_head_neck.html (907 words)

	eMedicine - Schwannoma, Cranial Nerve : Article by Mahesh Jayaraman, MD
		The facial nerve enters the labyrinth (labyrinthine segment), courses anteriorly in the temporal bone to the geniculate ganglion, turns posteriorly to pass beneath the lateral semicircular canal (tympanic segment) and then inferiorly to course through the mastoid (vertical segment), and exits the temporal bone via the stylomastoid foramen.
		From the trochlear nucleus in the midbrain, fibers of the trochlear nerve (ie, CN IV) cross the midline dorsal to the cerebral aqueduct and exit the midbrain dorsally.
		The hypoglossal nerve (CN XII) is formed by the fusion of multiple rootlets that emerge from the ventrolateral sulcus between the medullary olive and pyramid.
	www.emedicine.com /radio/topic7.htm (907 words)

	PeriNervSystem.1.18.html
		Structure : The auditory nerve carries sensory signals from the tympanic membrane and the inner ear to the medulla oblongata, and to the cerebellum.
		Definition : Cranial nerve VIII is the auditory nerve.
	k-2.stanford.edu /InfoFrames/PeriNervSystem.1.18.html (907 words)

	eMedicine - Schwannoma, Cranial Nerve : Article by Mahesh Jayaraman, MD
		The facial nerve enters the labyrinth (labyrinthine segment), courses anteriorly in the temporal bone to the geniculate ganglion, turns posteriorly to pass beneath the lateral semicircular canal (tympanic segment) and then inferiorly to course through the mastoid (vertical segment), and exits the temporal bone via the stylomastoid foramen.
		From the trochlear nucleus in the midbrain, fibers of the trochlear nerve (ie, CN IV) cross the midline dorsal to the cerebral aqueduct and exit the midbrain dorsally.
		The hypoglossal nerve (CN XII) is formed by the fusion of multiple rootlets that emerge from the ventrolateral sulcus between the medullary olive and pyramid.
	www.emedicine.com /radio/topic7.htm (907 words)

	cranial nerve V - General Practice Notebook
		The trigeminal nerve has a sensory component to the face, cornea, nasal mucosa, teeth, tympanic membrane and anterior 2/3 of the tongue.
		It is the principal motor nerve supplying the muscles of mastication.
		The information provided herein should not be used for diagnosis or treatment of any medical condition.
	www.gpnotebook.co.uk /cache/60424197.htm (907 words)

	fifth cranial nerve - General Practice Notebook
		The trigeminal nerve has a sensory component to the face, cornea, nasal mucosa, teeth, tympanic membrane and anterior 2/3 of the tongue.
		It is the principal motor nerve supplying the muscles of mastication.
		Oxbridge Solutions Ltd® is an independent company owned by the authors which does not receive income from any other organisation or individual.
	www.gpnotebook.co.uk /cache/382730269.htm (907 words)

	THE THROAT: Palate, tonsils, and pharangeal wall
		After leaving the facial canal and moving over the inner surface of the tympanic membrane in the middle ear, the chorda enters the infratemporal fossa deep to the inferior alveolar nerve between a small fissure in the base of the skull and the lingual nerve.
		The bulk of the nerve is in the sensory root(general somatic afferents), which yield several branches you should be able to recognize: infe4rior alveolar nerve, lingual nerve, long buccal nerve and auricolotemporal nerve.
		of the tongue and its parasympathetic preganglionic fibers pass though the lingual nerve to synapse in the submandibular ganglion(remember, it’s a 2-way street).
	www.dent.ucla.edu /ftp/classes/2006/ITF.htm (1498 words)

	IDIOPATHIC FACIAL NERVE PARALYSIS (BELL'S PALSY) IN THE ASIR REGION
		An investigation of acute facial nerve paralysis in animals induced by exposure of the tympanic membrane to cold air.
		Facial nerve grading, using House-Brackman classification system, was used to grade all patients at the time of presentation, and for assessment during recovery at follow-up.
		This is a prospective study of idiopathic facial nerve paralysis (Bell's palsy) in the southwest region of Saudi Arabia (Asir Region).
	www.kfshrc.edu.sa /annals/176/97-103.html (1561 words)

	Long term efficacy and safety of botulinum toxin A injection for crocodile tears syndrome -- Barañano and Miller 88 (4): 588 -- British Journal of Ophthalmology
		of the lacrimal gland, and resection of the tympanic nerve proximal
		Botulinum toxin treatment for hyperlacrimation secondary to aberrant regenerated seventh nerve palsy or salivary gland transplantation.
		in the region of the second division of the trigeminal nerve
	www.bjophthalmol.com /cgi/content/full/88/4/588 (1561 words)

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In the News (Tue 2 Dec 08)