astrocyte

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astrocyte

 [as´tro-sīt]
a neuroglial cell of ectodermal origin, characterized by fibrous or protoplasmic processes; collectively called astroglia or 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.
[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]
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ASTROCYTES

astrocyte

(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), adjective

Cajal,

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 Cajal
Cajal formol ammonium bromide solution
Cajal gold-sublimate method
Cajal uranium silver method
horizontal 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 cell
interstitial 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 cell
Deiters 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]
References in periodicals archive ?
The number of cells in 10 separately screened areas was calculated and the total number of Cajal cells in the areas, 0-3, 4-8, and >8 cells were regarded as sparse, few and many, respectively.
c-kit positive Cajal cells, which are easily distinguished from the mast cells in the UPJ, were demonstrated in this study.
Although the ultrastructural configurations in the gastrointestinal and neuronal systems have frequently been evaluated via electron microscopic methods, studies about the electron microscopic evaluation of Cajal cells in human UPJs have not been encountered in the literature.