释义 |
dendrite
den·drite D0129600 (dĕn′drīt′)n.1. a. A mineral crystallizing in another mineral in the form of a branching or treelike mark.b. A rock or mineral bearing such a mark or marks.2. A branched protoplasmic extension of a nerve cell that conducts impulses from adjacent cells inward toward the cell body. A single nerve may possess many dendrites. Also called dendron.dendrite (ˈdɛndraɪt) n1. (Anatomy) Also called: dendron any of the short branched threadlike extensions of a nerve cell, which conduct impulses towards the cell body2. (Minerals) a branching mosslike crystalline structure in some rocks and minerals3. (Minerals) a crystal that has branched during growth and has a treelike form[C18: from Greek dendritēs relating to a tree] dendritic, denˈdritical adj denˈdritically advden•drite (ˈdɛn draɪt) n. 1. a. a branching figure or marking, resembling moss or a shrub or tree in form, found on or in certain stones or minerals due to the presence of a foreign material. b. any arborescent crystalline growth. 2. any branching process of a neuron that conducts impulses toward the cell body. [1720–30; < Greek dendritēs pertaining to a tree =déndr(on) tree + -ītēs -ite1] den·drite (dĕn′drīt′)1. Any of several parts branching from the body of a nerve cell that receive and transmit nerve impulses.2. A mineral that has a branching crystal pattern. Dendrites often form within or on the surface of other minerals.ThesaurusNoun | 1. | dendrite - short fiber that conducts toward the cell body of the neuronnerve fiber, nerve fibre - a threadlike extension of a nerve cellnerve cell, neuron - a cell that is specialized to conduct nerve impulses | TranslationsDendrite
dendrite: see nervous systemnervous system, network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system. ..... Click the link for more information. ; synapsesynapse , junction between various signal-transmitter cells, either between two neurons or between a neuron and a muscle or gland. A nerve impulse reaches the synapse through the axon, or transmitting end, of a nerve cell, or neuron. ..... Click the link for more information. .Dendrite a branching process of a nerve cell that receives excitatory or inhibitory influences from other neurons or receptor cells. In some types of cells the dendrite directly receives mechanical, chemical, or thermal stimulation. Various cells may have from one to many dendrites. They form the sensory pole of the nerve cell. The dendrite attains maximal branching in neurons of the central nervous systems of animals with a high degree of organization. The numerous synapses on the surface of a dendrite are formed by the axons of other cells that approach them.
Dendrite a crystalline form of a mineral, alloy, or artificial compound, pertaining to a complex type of skeleton crystals (incomplete crystalline polyhedra) or to an aggregation of accreted crystals, mutually oriented in accordance with their symmetry. Usually a dendrite is shaped like the small branches of a tree, the leaf of a fern, or a star (for example, a snowflake). Dendrites are formed from melts, vapors, or solutions during the rapid crystallization of the substance under conditions of restricted growth as a result of the uneven supply of materials to various parts of the growing crystals, for example, along fine, small fissures or rocks, crystals, or aggregates of other minerals; between thin glass plates; in viscous media; and in friable clay formations. In nature, dendrites are common in native copper, silver, gold, and other metals as well as in pyrolusite, uraninite, the sulfides of iron and copper, and many other minerals. dendrite[′den‚drīt] (neuroscience) The part of a neuron that carries the unidirectional nerve impulse toward the cell body. Also known as dendron. (crystallography) A crystal having a treelike structure. dendrite
dendrite [den´drīt] any of the threadlike extensions of the cytoplasm of a neuron; they typically branch into treelike processes, and compose most of the receptive surface of a neuron. Dendrites in a multipolar neuron. From Dorland's, 2000. den·drite (den'drīt), 1. One of the two types of branching protoplasmic processes of the nerve cell (the other being the axon). Synonym(s): dendritic process, dendron, neurodendrite, neurodendron2. A crystalline treelike structure formed during the freezing of an alloy. [G. dendritēs, relating to a tree] dendrite (dĕn′drīt′)n.1. a. A mineral crystallizing in another mineral in the form of a branching or treelike mark.b. A rock or mineral bearing such a mark or marks.2. A branched protoplasmic extension of a nerve cell that conducts impulses from adjacent cells inward toward the cell body. A single nerve may possess many dendrites. Also called dendron.den·drite (den'drīt) 1. One of the two types of branching protoplasmic processes of the nerve cell (the other being the axon). Synonym(s): dendritic process, dendron, neurodendrite. 2. A crystalline treelike structure formed during the freezing of an alloy. [G. dendritēs, relating to a tree]dendrite (den'drit?) [Gr. dendrites, pert. to a tree] DENDRITESA short spike-shaped cell process. The term usually refers to the branched, tapering cell processes of neurons. Incoming synapses form on the neuronal dendrites, which often arborize, sometimes extensively. Synonym: dendron See: illustrationextracapsular dendriteA dendrite of a neuron of autonomic ganglia that pierces the capsule surrounding the cell and extends for a considerable distance from the cell body.intracapsular dendriteA dendrite of a neuron of autonomic ganglia that branches beneath the capsule of the ganglion, forming a network about the cell body.dendritic (den-drit'ik), adjectivedendrite One of the usually numerous branches of a nerve cell that carry impulses toward the cell body. Dendrites allow the most complex interconnection between nerve cells, as in the brain, so that elaborate control arrangements over the passage of nerve impulses are made possible. Recent research suggests that sections of some dendrites can function independently.dendrite or dendron a projection from the nerve cell which branches and conducts impulses towards the cell body from other neurones with which they have SYNAPSES. See NEURON, AXON and Fig. 228 .den·drite (den'drīt) 1. One of the two types of branching protoplasmic processes of the nerve cell. Synonym(s): neurodendrite. 2. A crystalline treelike structure formed during the freezing of an alloy. [G. dendritēs, relating to a tree]dendrite Related to dendrite: axonWords related to dendritenoun short fiber that conducts toward the cell body of the neuronRelated Words- nerve fiber
- nerve fibre
- nerve cell
- neuron
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