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Nerve Fiber, Myelinated -- See Nerve Fibers, Myelinated


A class of nerve fibers as defined by their structure, specifically the nerve sheath arrangement. The AXONS of the myelinated nerve fibers are completely encased in a MYELIN SHEATH. They are fibers of relatively large and varied diameters. Their NEURAL CONDUCTION rates are faster than those of the unmyelinated nerve fibers (NERVE FIBERS, UNMYELINATED). Myelinated nerve fibers are present in somatic and autonomic nerves
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Nerve Fibers : Axon growth and guidance / edited by Dominique Bagnard  2007 1
  Nerve Fibers, Myelinated -- 2 Related Subjects   2
Nerve Fibers, Myelinated   3
Nerve Fibers, Myelinated -- physiology : Myelinated fibers and saltatory conduction in the shrimp : the fastest impulse conduction in the animal kingdom / Ke Xu, Susumu Terakawa  2013 1
 

Nerve, Fifth Cranial -- See Trigeminal Nerve


The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the TRIGEMINAL GANGLION and project to the TRIGEMINAL NUCLEUS of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication
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Nerve gas -- See Nerve gases


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Nerve gases -- See Also the narrower term Sarin


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Nerve gases   3
Nerve gases -- Great Britain -- History -- 20th century : Nerve agents in postwar Britain : deterrence, publicity and disarmament, 1945-1976 / William King  2021 1
Nerve gases -- History : Toxic : A a History of Nerve Agents, from Nazi Germany to Putin's Russia  2020 1
Nerve gases -- Toxicology : Sensing of deadly toxic chemical warfare agents, nerve agent simulants, and their toxicological aspects / edited by Sangita Das, Sabu Thomas, Partha Pratim Das  2022 1
Nerve gases -- United States : Review of proposed process changes for expedited disposal of the Newport stockpile of bulk VX nerve agent  2001 1
 

Nerve grafting -- See Also the narrower term Nervous system Regeneration


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Nerve grafting. : Brain damage, brain repair / by James W. Fawcett, Anne E. Rosser and Stephen B. Dunnett ; with additional contributions from Harry Baker ... [and others]  2001 1
Nerve growth factor.   11
Nerve Growth Factor -- adverse effects.   2
Nerve growth factor -- Analysis : Neuronal factors / editor, J. Regino Perez-Polo  2019 1
Nerve growth factor -- Laboratory manuals : Neurotrophin protocols / edited by Robert A. Rush  2001 1
Nerve Growth Factor -- physiology.   2
Nerve growth factor -- Purification : Neuronal factors / editor, J. Regino Perez-Polo  2019 1
Nerve Growth Factors.   9
Nerve Growth Factors -- analysis : Neurotrophic factors / edited by Alan A. Boulton, Glen B. Baker, and Franz Hefti  1993 1
Nerve Growth Factors -- genetics : Neurotrophic factors / edited by Alan A. Boulton, Glen B. Baker, and Franz Hefti  1993 1
Nerve Growth Factors -- therapeutic use : CNS injuries : cellular responses and pharmacological strategies / edited by Martin Berry, Ann Logan  1999 1
 

Nerve II, Cranial -- See Optic Nerve


The 2nd cranial nerve which conveys visual information from the RETINA to the brain. The nerve carries the axons of the RETINAL GANGLION CELLS which sort at the OPTIC CHIASM and continue via the OPTIC TRACTS to the brain. The largest projection is to the lateral geniculate nuclei; other targets include the SUPERIOR COLLICULI and the SUPRACHIASMATIC NUCLEI. Though known as the second cranial nerve, it is considered part of the CENTRAL NERVOUS SYSTEM
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Nerve IIs, Cranial -- See Optic Nerve


The 2nd cranial nerve which conveys visual information from the RETINA to the brain. The nerve carries the axons of the RETINAL GANGLION CELLS which sort at the OPTIC CHIASM and continue via the OPTIC TRACTS to the brain. The largest projection is to the lateral geniculate nuclei; other targets include the SUPERIOR COLLICULI and the SUPRACHIASMATIC NUCLEI. Though known as the second cranial nerve, it is considered part of the CENTRAL NERVOUS SYSTEM
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Nerve Impulse -- See Action Potentials


Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli
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Nerve Impulses -- See Action Potentials


Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli
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Nerve Injuries, Facial -- See Facial Nerve Injuries


Traumatic injuries to the facial nerve. This may result in FACIAL PARALYSIS, decreased lacrimation and salivation, and loss of taste sensation in the anterior tongue. The nerve may regenerate and reform its original pattern of innervation, or regenerate aberrantly, resulting in inappropriate lacrimation in response to gustatory stimuli (e.g., "crocodile tears") and other syndromes
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Nerve Injuries, Peripheral -- See Peripheral Nerve Injuries


Injuries to the PERIPHERAL NERVES
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Nerve Injuries, Trigeminal -- See Trigeminal Nerve Injuries


Traumatic injuries to the TRIGEMINAL NERVE. It may result in extreme pain, abnormal sensation in the areas the nerve innervates on face, jaw, gums and tongue and can cause difficulties with speech and chewing. It is sometimes associated with various dental treatments
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Nerve Injury, Facial -- See Facial Nerve Injuries


Traumatic injuries to the facial nerve. This may result in FACIAL PARALYSIS, decreased lacrimation and salivation, and loss of taste sensation in the anterior tongue. The nerve may regenerate and reform its original pattern of innervation, or regenerate aberrantly, resulting in inappropriate lacrimation in response to gustatory stimuli (e.g., "crocodile tears") and other syndromes
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Nerve Injury, Peripheral -- See Peripheral Nerve Injuries


Injuries to the PERIPHERAL NERVES
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Nerve Injury, Trigeminal -- See Trigeminal Nerve Injuries


Traumatic injuries to the TRIGEMINAL NERVE. It may result in extreme pain, abnormal sensation in the areas the nerve innervates on face, jaw, gums and tongue and can cause difficulties with speech and chewing. It is sometimes associated with various dental treatments
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Nerve Ischemia, Optic -- See Optic Neuropathy, Ischemic


Ischemic injury to the OPTIC NERVE which usually affects the OPTIC DISK (optic neuropathy, anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy, posterior ischemic). The injury results from occlusion of arterial blood supply which may result from TEMPORAL ARTERITIS; ATHEROSCLEROSIS; COLLAGEN DISEASES; EMBOLISM; DIABETES MELLITUS; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (Glaser, Neuro-Ophthalmology, 2nd ed, p135)
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Nerve Ischemias, Optic -- See Optic Neuropathy, Ischemic


Ischemic injury to the OPTIC NERVE which usually affects the OPTIC DISK (optic neuropathy, anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy, posterior ischemic). The injury results from occlusion of arterial blood supply which may result from TEMPORAL ARTERITIS; ATHEROSCLEROSIS; COLLAGEN DISEASES; EMBOLISM; DIABETES MELLITUS; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (Glaser, Neuro-Ophthalmology, 2nd ed, p135)
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Nerve, Laryngeal -- See Laryngeal Nerves


Branches of the VAGUS NERVE. The superior laryngeal nerves originate near the nodose ganglion and separate into external branches, which supply motor fibers to the cricothyroid muscles, and internal branches, which carry sensory fibers. The RECURRENT LARYNGEAL NERVE originates more caudally and carries efferents to all muscles of the larynx except the cricothyroid. The laryngeal nerves and their various branches also carry sensory and autonomic fibers to the laryngeal, pharyngeal, tracheal, and cardiac regions
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Nerve, Median -- See Median Nerve


A major nerve of the upper extremity. In humans, the fibers of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually C6 to T1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand
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Nerve-Muscle Preparation -- See Neuromuscular Junction


The synapse between a neuron and a muscle
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Nerve-Muscle Preparations -- See Neuromuscular Junction


The synapse between a neuron and a muscle
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Nerve Neoplasm, Peripheral -- See Peripheral Nervous System Neoplasms


Neoplasms which arise from peripheral nerve tissue. This includes NEUROFIBROMAS; SCHWANNOMAS; GRANULAR CELL TUMORS; and malignant peripheral NERVE SHEATH NEOPLASMS. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp1750-1)
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Nerve Neoplasms, Peripheral -- See Peripheral Nervous System Neoplasms


Neoplasms which arise from peripheral nerve tissue. This includes NEUROFIBROMAS; SCHWANNOMAS; GRANULAR CELL TUMORS; and malignant peripheral NERVE SHEATH NEOPLASMS. (From DeVita Jr et al., Cancer: Principles and Practice of Oncology, 5th ed, pp1750-1)
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Nerve net -- See Neural circuitry


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Nerve Net   79
Nerve Net -- anatomy & histology : Neuroanatomy research advances / Cian E. Flynn and Brandon R. Callaghan, editors  c2010 1
Nerve Net -- growth & development : Self-organizing neural maps : the retinotectal map and mechanisms of neural development : from retina to tectum / John T. Schmidt  2020 1
Nerve Net -- physiology   25
 

Nerve Nets -- See Nerve Net


A meshlike structure composed of interconnecting nerve cells that are separated at the synaptic junction or joined to one another by cytoplasmic processes. In invertebrates, for example, the nerve net allows nerve impulses to spread over a wide area of the net because synapses can pass information in any direction
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Nerve network -- See Neural circuitry


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