Definitions
from The Century Dictionary.
- noun The lining membrane of the cerebral ventricles (except the fifth) and of the central canal of the spinal cord. Also
endyma .
from the GNU version of the Collaborative International Dictionary of English.
- noun (Anat.) The epithelial lining of the ventricles of the brain and the canal of the spinal cord; endyma; ependymis.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun anatomy A thin
epithelial membrane lining theventricular system of thebrain and thespinal cord
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun thin epithelial membrane lining the ventricles of the brain and the spinal cord canal
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Langub, MC, et al. Estrogen receptor immunoreactive glia, endothelia and ependyma in guinea pig preoptic area and median eminence: electron microscopy.
T.S. Wiley: Estrogen Dilemma: There Is No Dilemma When You Know the Details T.S. Wiley 2010
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The cerebrospinal fluid, 129 for the most part elaborated by the choroid plexuses, is poured into the cerebral ventricles which are lined by smooth ependyma.
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Between the polymorphous layer and the ventricular ependyma is the white substance of the alveus.
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The lateral surface of each lamina is directed toward the body and anterior cornu of the lateral ventricle, and is covered by the ependyma of that cavity.
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They are lined by a thin, diaphanous membrane, the ependyma, covered by ciliated epithelium, and contain cerebrospinal fluid, which, even in health, may be secreted in considerable amount.
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Above the pons these ascending fibers come to the surface at the side of the reticular formation in the trigonum lemnisci and are covered by a layer of ependyma.
IX. Neurology. 4e. Composition and Central Connections of the Spinal Nerves 1918
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It is covered by a thin layer of gray substance continuous with that of the medulla spinalis; superficial to this is a thin lamina of neuroglia which constitutes the ependyma of the ventricle and supports a layer of ciliated epithelium.
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Likewise an ascending current of fluid apparently occurs in the central canal of the spinal cord; this, representing a possible product of the ependyma, may be added to the intraventricular supply.
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On section it is seen that the funiculus separans is formed by a strip of thickened ependyma, and the area postrema by loose, highly vascular, neuroglial tissue containing nerve cells of moderate size.
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The ependymal layer is ultimately converted into the ependyma of the central canal; the processes of its cells pass outward toward the periphery of the medulla spinalis.
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