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 ?
The latter feature is much less frequently seen in ependymomas and is characterized by clusters of ependymal cells arranged around a lumen with some resemblance to the central canal of the spinal cord.
In our study, when spinal cord injury and melatonin group were compared, ependymal cells showed regular distribution around the canalis centralis, mild hypertrophy in the cells and intense and regular distribution of nerve fibrils in the bipolar appearance of the funicular cells.
Mild lymphocytic perivascular cuffing and loss of Purkinje cells were observed in the cerebrum and cerebellum, and virus antigen was detected in ependymal cells and epithelium of the choroid plexus and in cerebellar Purkinje cells.
Barbe, "Selective tropism of a neurotropic coronavirus for ependymal cells, neurons, and meningeal cells," Journal of Virology, vol.
These tumors arise from the ependymal cells of the central canal; hence, they are located centrally, as opposed to the eccentric location of astrocytomas (Table 2).
Choroid plexus and ependymal cells are quite similar, with the latter showing more "degenerative" cytologic features and fewer cellular clusters.
The SVZ have five main cell types: B1 astrocytes (type B1 cells), B2 astrocytes (type B2 cells), transit-amplifying cells (type C cells), neuroblasts (type A cells), and ependymal cells (type E cells) (Figure 1).
Immunohistologic analysis confirmed systemic infection and revealed influenza virus nucleocapsid protein in 1) ganglions of the adrenal medulla, 2) ependymal cells of the central nervous system (associated with marked lymphocytic meningitis and perivascular cuffing), 3) thymus epithelia, and 4) epithelia of the exocrine pancreas (Figure 1).
Based on the previous studies, morphine causes a delay in the development of neural tube, cerebellum, brain cavities, and the ependymal cells in the choroid plexus area of the nervous system [8-11].
Both spindle cells and ependymal cells were positive for vimentin.
There are four cell types found in this region: the ependymal cells (Ep) line the ventricle and separate the cerebrospinal fluid from the SVZ.