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WordNet 3.0Copyright Princeton University
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n. - Thin epithelial membrane lining the ventricles of the brain and the spinal cord canal.

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Usage examples (12)
  • Between the polymorphous layer and the ventricular ependyma is the white substance of the alveus.
  • 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.
  • 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.
  • 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.
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