| 释义 |
astrocyteenUK
as·tro·cyte A0486000 (ăs′trə-sīt′)n. Any of a group of star-shaped cells that have long processes extending out in all directions and are components of the neuroglia, providing support for neurons in the central nervous system and playing a variety of roles in synaptic transmission.
as′tro·cyt′ic (-sĭt′ĭk) adj.astrocyte (ˈæstrəʊˌsaɪt) n (Biology) any of the star-shaped cells in the tissue supporting the brain and spinal cord (neuroglia)as•tro•cyte (ˈæs trəˌsaɪt)
n. a star-shaped neuroglial cell of ectodermal origin. [1895–1900] as`tro•cyt′ic (-ˈsɪt ɪk) adj. astrocyteA star-shaped type of cell that supports neurons in the brain and spinal cord. See neuroglia.Thesaurus| Noun | 1. | astrocyte - comparatively large neuroglial cellglial cell, neurogliacyte, neuroglial cell - a cell of the neurogliaastroglia, macroglia - tissue consisting of large stellate neuroglial cellsfibrous astrocyte - star-shaped cells with long processes; found in the white matter of the brain and spinal cordprotoplasmic astrocyte - a kind of astrocyte found in the grey matter |
astrocyteenUK
astrocyte[′as·trə‚sīt] (neuroscience) A star-shaped cell; specifically, a neuroglial cell. astrocyteenUK
astrocyte [as´tro-sīt] a neuroglial cell of ectodermal origin, characterized by fibrous or protoplasmic processes; collectively called astroglia" >astroglia or macroglia" >macroglia. Astrocyte in association with a blood vessel. From Dorland's, 2000. as·tro·cyte (as'trō-sīt), One of the large neuroglia cells of nervous tissue.
See also: neuroglia. Synonym(s): astroglia cell, astroglia, Cajal cell (2) , Deiters cells (2) , macroglia cell, macroglia, spider cell (1) [G. astron, star, + kytos, hollow (cell)] astrocyte (ăs′trə-sīt′)n. A star-shaped cell, especially a neuroglial cell of nervous tissue.
as′tro·cyt′ic (-sĭt′ĭk) adj.as·tro·cyte (as'trō-sīt, astrŏ-sīt) One of the large neuroglia cells of nervous tissue.
See also: neuroglia
Synonym(s): astroglia, macroglia. [G. astēr, star, + kytos, chamber, cell] ASTROCYTESastrocyte (as'tro-sit?) [ astro- + -cyte, cell] A common, asterisk-shaped glial cell with many radiating cell processes. Astrocytes are neuroectodermal cells that begin as radial glia that later mature into multipolar cells. Astrocytes are spread homogeneously throughout the central nervous system and each astocyte occupies its own compartment of neuropil. The cell processes of an astrocyte are covered with "leaflets" of cytoplasm that contact axons, synaptic structures, blood vessels, and neighboring glia. Touching astrocytes are electrically coupled and can propagate calcium potentials and within its microdomain of neuropil, each astrocyte regulates the extracellular concentration of certain molecules, including neurotransmitters. In areas of injury, astrocytes can proliferate. Synonym: astroglial cell See: illustrationastrocytic (as?tro-sit'ik), adjectiveCajal, Santiago, Spanish histologist and Nobel laureate, 1852-1934. Cajal astrocyte stain - a method for demonstrating astrocytes by impregnation in a solution containing gold chloride and mercuric chloride.Cajal cell - Synonym(s): horizontal cell of CajalCajal formol ammonium bromide solutionCajal gold-sublimate methodCajal uranium silver methodhorizontal cell of Cajal - a small fusiform cell found in the superficial layer of the cerebral cortex with its long axis placed horizontally. Synonym(s): astrocyte; Cajal cellinterstitial nucleus of Cajal - a group of neurons believed to be involved in the integration of head and eye movements. Synonym(s): interstitial nucleus
Deiters, Otto F.K., German anatomist, 1834-1863. Deiters cells - the supporting cells of the organ of Corti; one of the large neuroglia cells of nervous tissue. Synonym(s): astrocyte; phalangeal cellDeiters nucleus - lateral vestibular nucleus.Deiters terminal frames - platelike structures in the organ of Corti uniting the outer phalangeal cells with Hensen cells.as·tro·cyte (as'trō-sīt, astrŏ-sīt) One of the large neuroglial cells of neural tissue.
See: neuroglia[G. astēr, star, + kytos, chamber, cell]astrocyteenUK
Related to astrocyte: microglia, neuroglia, protoplasmic astrocyte, astrocytoma, Glial cells, PubMed, OligodendrocytesWords related to astrocytenoun comparatively large neuroglial cellRelated Words- glial cell
- neurogliacyte
- neuroglial cell
- astroglia
- macroglia
- fibrous astrocyte
- protoplasmic astrocyte
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