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Topic: Vagus nerve

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	Vagus nerve - Wikipedia, the free encyclopedia
		The vagus nerve supplies sensory parasympathetic fibers to all the organs except the suprarenal glands, from the neck down to the second segment of the transverse colon.
		This means that the vagus nerve is responsible for such varied tasks as heart rate, gastrointestinal peristalsis, sweating, and quite a few muscle movements in the mouth, including speech (via the recurrent laryngeal nerve) and keeping the larynx open for breathing.
		Vagus nerve stimulation therapy using a pacemaker-like device implanted in the chest is a treatment used since 1997 to control seizures in epilepsy patients and has recently been approved for treating drug-resistant cases of clinical depression.
	en.wikipedia.org /wiki/Vagus_nerve (483 words)

	Vagus nerve: Facts and details from Encyclopedia Topic (Site not responding. Last check: 2007-11-07)
		Cranial nerves are nerves which emerge from the brainstem instead of the spinal cord....
		The recurrent laryngeal nerve is a branch of the vagus nerve (the tenth cranial nerve) which supplies the larynx (voice box)....
		The glossopharyngeal nerve is the ninth of twelve cranial nerves....
	www.absoluteastronomy.com /encyclopedia/v/va/vagus_nerve.htm (1298 words)

	IX. Neurology. 5j. The Vagus Nerve. Gray, Henry. 1918. Anatomy of the Human Body.
		The vagus is attached by eight or ten filaments to the medulla oblongata in the groove between the olive and the inferior peduncle, below the glossopharyngeal.
		The vagus nerve passes vertically down the neck within the carotid sheath, lying between the internal jugular vein and internal carotid artery as far as the upper border of the thyroid cartilage, and then between the same vein and the common carotid artery to the root of the neck.
		The nerve on either side ascends in the groove between the trachea and esophagus, passes under the lower border of the Constrictor pharyngis inferior, and enters the larynx behind the articulation of the inferior cornu of the thyroid cartilage with the cricoid; it is distributed to all the muscles of the larynx, excepting the Cricothyreoideus.
	www.bartleby.com /107/205.html (1901 words)

	Vagus Nerve (Site not responding. Last check: 2007-11-07)
		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.
		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.
	www.meddean.luc.edu /lumen/MedEd/GrossAnatomy/h_n/cn/cn1/cn10.htm (703 words)

	Vagus Nerve Stimulation - neurologychannel
		Vagus nerve stimulation involves the implantation of a generator that stimulates the vagus nerve and thus reduces seizure activity.
		The vagus nerve is one of 12 pairs of cranial nerves (i.e., nerves that originate in the brain).
		Stimulation of the vagus nerve is thought to affect some of its connections to areas in the brain that are prone to seizure activity.
	www.neurologychannel.com /vagus (391 words)

	Vagus Nerve Stimulation (VNS) to Treat Epilepsy
		The vagus nerve is one of the 12 cranial nerves, the paired nerves that attach to the undersurface of the brain and relay information to and from the brain.
		It is known, however, that the vagus nerve is an important pathway to the brain.
		It is thought that by stimulating the vagus nerve, electrical energy is discharged upward into a wide area of the brain, disrupting the abnormal brain activity responsible for seizures.
	foxnews.webmd.com /content/article/87/99672.htm?src=rss_foxnews (748 words)

	Vagus Nerve Stimulation and the Mystery Behind It (Site not responding. Last check: 2007-11-07)
		Vagus Nerve Stimulation and the Mystery Behind It This paper reflects the research and thoughts of a student at the time the paper was written for a course at Bryn Mawr College.
		The vagus nerve stimulation is used to treat many different types of epileptic seizures, thus it is important to have an understanding on the types of seizures that are associated with the disorder.
		The vagus nerve, or pneumogastric nerve, is one of the 12 pairs of cranial nerves and originates in the brain and passes through the neck and thorax into the abdomen.
	serendip.brynmawr.edu /bb/neuro/neuro05/web1/etrinh.html (1448 words)

	Vagus Nerve (Site not responding. Last check: 2007-11-07)
		The vagus nerve is one of the 12 primary cranial nerves and is a primary communication line from the major bodily organs to the neck.
		When the vagus nerve is stimulated it affects areas in the brain that are prone to seizure activity.
		A wire under the skin connects the device to the vagus nerve in the neck, where the surgeon wraps the lead wires around the nerve.
	www.lclark.edu /~jrubin/Vagus.html (397 words)

	Vagus Nerve Stimulation : Epilepsy.com
		Vagus nerve stimulation (VNS) is designed to prevent seizures by sending regular, mild pulses of electrical energy to the brain via the vagus nerve.
		The vagus nerve is part of the autonomic nervous system, which controls functions of the body that are not under voluntary control, such as the heart rate.
		The vagus nerve passes through the neck as it travels between the chest and abdomen and the lower part of the brain.
	www.epilepsy.com /epilepsy/vns.html (598 words)

	Scientists Discover Vagus Nerve Stimulation Relieves Depression (Site not responding. Last check: 2007-11-07)
		The vagus nerve is among 12 sets of cranial nerves that travel from the brain stem down into the body.
		The left vagus nerve is chosen for stimulation because the right branch is linked to the heart and altering the neuron’s functions might have cardiac effects, Huey said.
		The nerve links to the a relay point in the brain called the nucleus tractus solitarius, which in turn activates neurons in the limbic system and the cortex, where higher thoughts emerge.
	www.uchc.edu /ocomm/features/stories/stories06/feature_vagusnerve.html (846 words)

	Weill Cornell Department of Neurology and Neuroscience
		Vagus nerve stimulation is a type of surgery for poorly controlled seizures, but does not involve surgery on the brain.
		A small pacemaker-like device is placed under the skin, and periodically stimulates a nerve (the vagus) in the side of the neck with a small amount of electrical current.
		A connecting wire, also implanted under the skin, connects this "pacemaker" with the vagus nerve, by delicate leads which are carefully attached to the vagus nerve on the left side of the neck.
	www.med.cornell.edu /neuro/patient_care/epilepsy_center/ne-vagalns.html (450 words)

	Vagus Nerve Stimulation
		Vagus Nerve Stimulation or VNS is a procedure used to control epileptic seizures.
		The vagus nerve is one of the 12 cranial nerves that originate in the brain.
		Researchers think that the vagus nerve is also connected to the limbic structures in the brain, which are associated with the regulation of mood.
	www.umm.edu /neurosciences/vagus_nerve.html (755 words)

	VAGUS NERVE STIMULATION INFORMED CONSENT AND FAQ * OTOLARYNGOLOGY HOUSTON (Site not responding. Last check: 2007-11-07)
		This periodically stimulates the vagus nerve in the side of the neck ; with an electrical current, thus reducing seizure frequency and severity.
		The vagus nerve serves as one of many highways of information carrying messages to and from the brain.
		Nerve fibers in the vagus nerve relay information from the body's organs (such as the stomach and heart) to the brain.
	www.ghorayeb.com /VNSconsent.html (417 words)

	Vagus nerve stimulation - Wikipedia, the free encyclopedia
		Vagus nerve stimulation (VNS) is an invasive medical procedure used as an adjunctive treatment for intractable epilepsy and treatment-resistant clinical depression.
		VNS uses an implant that sends tiny electric shocks to the vagus nerve.
		A connecting wire is run under the skin from the device to the vagus nerve in the left side of the neck.
	en.wikipedia.org /wiki/Vagus_nerve_stimulation (279 words)

	Vagus Nerve Stimulation
		While the mechanisms for the antiepileptic effects of vagal nerve stimulation are not fully understood, the basic premise of VNS in the treatment of epilepsy is that vagal visceral afferents have a diffuse central nervous system projection, and activation of these pathways has a widespread effect upon neuronal excitability.
		Vagus nerve stimulation may be considered medically necessary as a treatment of patients with medically refractory partial-onset and generalized tonic-clonic seizures, defined as a frequency of 2 or more debilitating seizures per month.
		A June 2005 TEC Assessment on Vagus Nerve Stimulation for Treatment-resistant Depression concluded that evidence was insufficient to permit conclusions of the effect of VNS therapy on health outcomes.
	www.regence.com /trgmedpol/surgery/sur74.html (2893 words)

	Vagus nerve stimulator for epilepsy
		Similar to a pacemaker, a vagus nerve stimulator (VNS) is a small device implanted under the skin near your collarbone.
		Vagus nerve stimulation has been approved for use in treating people over age 12 with partial seizures who have not responded well to antiepileptic medications and are not candidates for epilepsy surgery.
		Vagus nerve stimulation is not a cure for epilepsy, and it does not work for everyone.
	www.webmd.com /hw/epilepsy/aa138962.asp (610 words)

	Vagus nerve definition - Medical Dictionary definitions of popular medical terms
		Vagus nerve: A remarkable nerve that supplies nerve fibers to the pharynx (throat), larynx (voice box), trachea (windpipe), lungs, heart, esophagus, and the intestinal tract as far as the transverse portion of the colon.
		The vagus nerve is the tenth cranial nerve.
		The term "vagus" (Latin for "wandering") is apt because the vagus nerve wanders all the way down from the brainstem to the colon, a long wandering way.
	www.medterms.com /script/main/art.asp?articlekey=7631 (443 words)

	Vagus Indigestion in Dairy and Beef Cattle (Site not responding. Last check: 2007-11-07)
		The vagus nerve runs along both sides of the esophagus and terminates in branches that innervate the forestomachs and abomasum.
		Type II vagus indigestion is a failure ofomasaltransport preventing aboral movement of ingestafrom the reticulum to the abomasum.
		Functional disturbances in omasal motility are the result of vagus nerve damage from inflammation due to conditions such as mycoticomasitis, reticular abscesses and localized adhesions.
	www.addl.purdue.edu /newsletters/1996/fall/vagus.shtml (887 words)

	VNS, Vagus Nerve Stimulation For Treating Depression (Site not responding. Last check: 2007-11-07)
		Vagus Nerve Stimulation may be the possible successor to ECT (Electroconvulsive Therapy).
		A stimulation electrode connected to the generator is tunneled from the chest to the neck where it is attached to the left vagus nerve.
		Previously, Cyberonics conducted a 60-patient pilot study of the safety and efficacy of the vagus nerve stimulation (VNS Therapy) in patients with chronic or recurrent depression.
	www.healthyplace.com /communities/depression/treatment/vns/index.asp (763 words)

	EP Healthcare - A New Method in Seizure Management: Vagus Nerve Stimulation (Site not responding. Last check: 2007-11-07)
		Also known as the tenth cranial nerve, the vagus nerve is the longest cranial nerve and is a major communications channel from the brain stem to organs in the neck, throat, chest, and abdomen.
		Stimulation to the vagus nerve is delivered in continuous on/off cycles 24 hours a day, regardless of seizure activity.-Starting out at a low setting, the usual dosage is 30 seconds of stimulation, at five minute intervals, with a strength of 0.25mA (milliamperes) of electrical current.
		Vagus nerve stimulation with the NCP has received favorable coverage assessments from Blue Cross and Blue Shield Technology Evaluation Center and approval for health insurance coverage by the Health Care Finance Administration (HCFA), the federal agency administering the Medicare program.
	www.eparent.com /healthcare/seizures2.htm (4488 words)

	Vagus Nerve 'Pacemaker' Seems To Work For Depression
		That is the result of a follow-up study reported on Sunday by Mark George of the Medical University of South Carolina and on Monday by his collaborator, A. John Rush of the University of Texas Southwestern Medical Center in Dallas, Texas at the annual meeting of the American College of Neuropsychopharmacology held in Waikoloa, Hawaii.
		It involves implanting an electronic device in the chest and connecting it to the left vagus nerve in the neck.
		The vagus nerve is a major nerve that carries sensory information to the brain from the heart and other internal organs.
	unisci.com /stories/20014/1211016.htm (833 words)

	Treatment Through Vagus Nerve Stimulation (Site not responding. Last check: 2007-11-07)
		Vagus nerve stimulation (VNS) is another form of treatment that may be tried when medications fail to stop seizures.
		Thin wires (electrodes) are threaded under the skin and wound around the vagus nerve in the neck.
		Vagus nerve stimulation (VNS) is a type of treatment in which short bursts of electrical energy are directed into the brain via the vagus nerve, a large nerve in the neck.
	www.epilepsyfoundation.org /answerplace/quickstart/newlydiagnosed/qstreatment/qstrvns.cfm (348 words)

	Definition of Vagus nerve
		3: The cochlear nerve arises from cells in the spiral ganglion of the c...
		It nerve arises from the hypoglossal nucleus and emerges f...
		1:...sory nerve''' is the eleventh of twelve [[cranial nerves]].
	www.wordiq.com /search/Vagus_nerve.html (689 words)

	New device offers hope for epileptics (Site not responding. Last check: 2007-11-07)
		The vagus nerve stimulator, as the device is called, has yielded promising results in early clinical tests determining its ability to control seizures.
		The stimulator, or pacemaker, consists of a tiny pair of electrodes which are implanted onto the vagus nerve in the region of the neck, and connected to a programmable generator which is implanted under the skin in the left upper chest.
		The electrodes work by stimulating the vagus nerve, a sensory and motor originating in the brain stem that enervates a number of organs including the heart, lungs, larynx, vocal cords, stomach, tongue and ears.
	www.usc.edu /hsc/info/pr/1vol1/120/epileptics.html (615 words)

	Stimulating the vagus nerve: memories are made of this (Site not responding. Last check: 2007-11-07)
		University of Virginia psychologists have moved the science of memory forward, reporting that stimulating the vagus nerve, which carries sensory messages to and from the brain, releases the neurotransmitter norepinephrine into the amygdala, strengthening memory storage in limbic regions of the brain that regulate arousal, memory and feeling responses to emotionally laden stimuli.
		Williams and his colleagues stimulated the vagus nerve at a level previously reported by Robert A. Jensen, PhD, his graduate adviser, to improve memory in both laboratory rats (0.4 microAmps for 30 seconds) and humans (0.5 microAmps for 30 seconds).
		In the second experiment, the researchers injected the rats with methyl atropine, a drug that blocks the acetylcholine that is released from descending vagal fibers onto peripheral organs, 10 minutes before stimulating the vagus nerve.
	www.apa.org /monitor/apr04/vagus.html (974 words)

	Vagus Nerve Stimulation: Conquer Treatment Resistant Depression
		The author was implanted with the vagus nerve stimulator on April 4th, 2001 in the investigational clinical trial for vagus nerve stimulation and depression.
		The book is written in an easy-to-understand way for patients by a patient and includes the side effects and benefits of vagus nerve stimulation, the insurance codes and reimbursement process and details of the implant procedure.
		When I was enrolled to be a study subject in the investigational trial of vagus nerve stimulation as a treatment for depression, there was nothing for me to use as a resource to research this procedure.
	www.vagusnervestimulation.com /book (637 words)

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