ependymal cell


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Related to ependymal cell: Microglial cell

e·pen·dy·mal cell

a cell of the simple cuboidal to low columnar epithelium lining the central canal of the spinal cord or one of the brain ventricles.

e·pen·dy·mal cell

(ĕ-pen'di-măl sel)
A cell lining the central canal of the spinal cord (those of pyramidal shape) or one of the brain ventricles (those of cuboidal shape).

ependymal cell

Any of the epithelial cells that form a one-cell-thick layer lining the ventricles and the central canal of the central nervous system. The ventricular (apical) surfaces of many ependymal cells are covered with cilia or microvilli. In most places, the ependymal layer does not have a basal lamina. Specialized regions of ependymal cells include the covering of the blood vessels and loose connective tissue of the choroid plexuses; here, the ependyma is specialized to secrete cerebrospinal fluid.
See also: cell
References in periodicals archive ?
42,43) Apart from lymphatic endothelium, D2-40 has been reported to be immunoreactive in mesotheliomas (44,45) and, in the CNS, in choroid plexus epithelium, ependymal cells, subependymal areas, and the leptomeninges.
In all animals, a strong neuronal infection could be observed with viral antigen in the cytoplasm and nuclei of neurons, glial cells, and ependymal cells in the brain, spinal cord, and eye (Table 1, Figure 2, panels A, B).
Choroid plexus and ependymal cells are quite similar, with the latter showing more "degenerative" cytologic features and fewer cellular clusters.
Both spindle cells and ependymal cells were positive for vimentin.
Laughing gulls that died during the study had viral antigen most frequently detected in the neurons, endothelial cells, glial cells, and ependymal cells in the brain, pancreatic acinar cells, and cortical and medullary cells of the adrenal glands.
In the brain, VZV involvement of small blood vessels or ependymal cells results in small-vessel vasculopathy (Figure 11, B, D, and E) (multifocal leukoencephalopathy) or ependymitis (ventriculitis), respectively.
The melanotic pigmentation of otherwise normal astrocytes and ependymal cells has occasionally been reported as an incidental finding in the dentate nucleus, lining of glioependymal cysts, and in the filum terminale.