| nerve endings | Specialised terminations of peripheral neurons. Nerve endings include neuroeffector junction(s) by which neurons activate target organs and sensory receptors (see receptors, sensory) which transduce information from the various sensory modalities and send it centrally in the nervous system. Presynaptic nerve endings are presynaptic terminals. (12 Dec 1998) |
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| nerve fascicle | A bundle of nerve fibres surrounded by perineurium. (05 Mar 2000) |
| nerve fibre | The axon of a nerve cell, ensheathed by oligodendroglia cells in brain and spinal cord, and by Schwann cells in peripheral nerves. (05 Mar 2000) |
| nerve fibres | Slender processes of neurons, especially the prolonged axons that conduct nerve impulses. (12 Dec 1998) |
| nerve fibres, myelinated | Grayish white nerve fibres whose axons are encased in a myelin sheath which may in turn be enclosed by a neurilemma (a thin membrane spirally enwrapping the myelin layers). (12 Dec 1998) |
| nerve field | The regional distribution of nerve terminals. (05 Mar 2000) |
| nerve force | An obsolete terms denoting the property of nerve tissue to conduct stimuli. (05 Mar 2000) |
| nerve graft | A nerve, or part of a nerve, used as a graft. (05 Mar 2000) |
| nerve growth cone | <cell biology> A specialised region at the tip of a growing neurite that is responsible for sensing the local environment and moving toward the neuron's target cell. Growth cones are hand shaped, with several long filopodia that differentially adhere to surfaces in the embryo. Growth cones can be sensitive to several guidance cues, for example: surface adhesiveness, growth factors, neurotransmitters and electric fields (galvanotropism). (18 Nov 1997) |
| nerve growth factor | <growth factor> A peptide (13.26 kD) of 118 amino acids (usually dimeric) with both chemotropic and chemotrophic properties for sympathetic and sensory neurons. Found in a variety of peripheral tissues, nerve growth factor attracts neurites to the tissues by chemotropism, where they form synapses. The successful neurons are then protected from neuronal death by continuing supplies of nerve growth factor. It is also found at exceptionally high levels in snake venom and male mouse submaxillary salivary glands, from which it is commercially extracted. Nerve growth factor was the first of a family of nerve tropic factors to be discovered. Amino acids 1-81 show homology with proinsulin. Besides its peripheral actions, nerve growth factor selectively enhances the growth of cholinergic neurons that project to the forebrain and that degenerate in Alzheimer's disease. Acronym: NGF (18 Nov 1997) |
| nerve growth factor antiserum | An antiserum containing antibodies against nerve growth factor; when injected into newborn animals the majority of sympathetic ganglion cells are permanently destroyed, resulting in hypoinnervation of peripheral tissues. Synonym: NGF antiserum. (05 Mar 2000) |
| nerve growth factors | Factors which enhance the growth potentialities of sensory and sympathetic nerve cells. (12 Dec 1998) |
| nerve implantation | Planting one nerve into the sheath of another nerve. (05 Mar 2000) |
| nerve impulse | An action potential. (18 Nov 1997) |
| 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. (12 Dec 1998) |
Synonyms : Cerebellar Mossy Fiber, Mossy Fiber, Cerebellar, Nerve Fiber
Synonyms : A Fiber, B Fiber, Fiber, A, Fiber, B, Fiber, Myelinated Nerve, Fibers, A, Fibers, B, Fibers, Myelinated Nerve, Myelinated Nerve Fiber, Myelinated Nerve Fibers, Nerve Fiber, Myelinated
Synonyms : C Fiber, Nerve Fiber, Unmyelinated, Unmyelinated Nerve Fiber, Unmyelinated Nerve Fibers
Synonyms : NGF-1beta, beta-Nerve Growth Factor, Factor, beta-Nerve Growth, NGF 1beta, beta Nerve Growth Factor
Synonyms : Growth-Associated Proteins, Neuronal, Neuronal Growth-Associated Proteins, Neuronotrophic Factors, Neurotrophic Protein, Neurotrophic Proteins, Proteins, Neuronal Growth-Associated, Factors, Nerve Growth, Factors, Neurite Outgrowth, Factors, Neuronotrophic
| nerve gas |
a toxic gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory system
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| nerve growth factor |
a protein that is involved in the growth of peripheral nerve cells
Ãâó: wordnet.princeton.edu/perl/webwn
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| nerve impulse |
the electrical discharge that travels along a nerve fiber; "they demonstrated the transmission of impulses from the cortex to the hypothalamus"
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| nerve plexus |
a network of intersecting nerves
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| nerve tissue |
nervous tissue: tissue composed of neurons
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| nerv | the terminal structure of an axon that does not end at a synapse |
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| nerv | the terminal structure of an axon that does not end at a synapse |
| nerv | repeated and long-term nerve compression (usually in nerves near joints that are subject to inflammation or swelling) |
| nerv | a threadlike extension of a nerve cell |
| nerv | a threadlike extension of a nerve cell |
| nerv | a toxic war gas that is inhaled or absorbed through the skin and has harmful effects on the nervous and respiratory system |
| nerv | a protein that is involved in the growth of peripheral nerve cells |
| nerv | the electrical discharge that travels along a nerve fiber |
| nerv | a bundle of nerve fibers following a path through the brain |
| nerv | a network of intersecting nerves |
| nerv | tissue composed of neurons |
| nerv | a bundle of nerve fibers following a path through the brain |
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