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Dendrite
Dendrite
Dendrites are one of two types of short, threadlike fibers that extend from the cell body of a nerve cell, or neuron . The other type are called axons. Dendrites receive electrochemical signals, which are known as postsynaptic potentials, from the axons of other neurons, and the information contained in these signals is fired across a synaptic gap or cleft about 0.02 microns or about 8 millionths of an inch wide and transmitted toward the cell body, with the signals fading as they approach their destination. A single neuron can have many dendrites, each composed of numerous branches; together, they comprise the greater part of the neuron's receptive surface. The number of axons and dendrites increases dramatically during infancy and childhood—possibly to facilitate the rapid development experienced during this period—and decrease in early adolescence . A child of six or seven has more dendrites than an adult. See also Synapse |
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"Dendrite." Gale Encyclopedia of Psychology. 2001. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "Dendrite." Gale Encyclopedia of Psychology. 2001. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1G2-3406000178.html "Dendrite." Gale Encyclopedia of Psychology. 2001. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-3406000178.html |
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dendrite
den·drite / ˈdendrīt/ • n. 1. Physiol. a short branched extension of a nerve cell, along which impulses received from other cells at synapses are transmitted to the cell body. Compare with axon. 2. a crystal or crystalline mass with a branching, treelike structure. ∎ a natural treelike or mosslike marking on a piece of rock or mineral. |
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"dendrite." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "dendrite." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O999-dendrite.html "dendrite." The Oxford Pocket Dictionary of Current English. 2009. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-dendrite.html |
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dendrite
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"dendrite." A Dictionary of Biology. 2004. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "dendrite." A Dictionary of Biology. 2004. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O6-dendrite.html "dendrite." A Dictionary of Biology. 2004. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-dendrite.html |
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dendrite
dendrite (den-dryt) n. one of the shorter branching processes of the cell body of a neurone, which makes contact with other neurones at synapses and carries nerve impulses from them into the cell body.
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"dendrite." A Dictionary of Nursing. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "dendrite." A Dictionary of Nursing. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O62-dendrite.html "dendrite." A Dictionary of Nursing. 2008. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-dendrite.html |
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dendrite
dendrite tree-like form in stone or mineral. XVIII. — F. — Gr. dendrī́tēs pert. to a tree, f. déndron tree; see -ITE.
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T. F. HOAD. "dendrite." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. T. F. HOAD. "dendrite." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O27-dendrite.html T. F. HOAD. "dendrite." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-dendrite.html |
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dendrite
dendrite A many-branched process, arising from the cell body of a neuron, that receives impulses from other neurons.
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MICHAEL ALLABY. "dendrite." A Dictionary of Zoology. 1999. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "dendrite." A Dictionary of Zoology. 1999. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1O8-dendrite.html MICHAEL ALLABY. "dendrite." A Dictionary of Zoology. 1999. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-dendrite.html |
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dendrite
dendrite see nervous system ; synapse . |
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"dendrite." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. 13 Feb. 2012 <http://www.encyclopedia.com>. "dendrite." The Columbia Encyclopedia, 6th ed.. 2008. Encyclopedia.com. (February 13, 2012). http://www.encyclopedia.com/doc/1E1-X-dendrite.html "dendrite." The Columbia Encyclopedia, 6th ed.. 2008. Retrieved February 13, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-X-dendrite.html |
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