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  • Title: The ependymal surface of the fourth ventricle of the rat: a combined scanning and transmission electron microscopic study.
    Author: Alvarez-Morujo AJ, Toranzo D, Blázquez JL, Peláez B, Sánchez A, Pastor FE, Amat G, Amat P.
    Journal: Histol Histopathol; 1992 Apr; 7(2):259-66. PubMed ID: 1515709.
    Abstract:
    The morphological features of the ependymal surface and supraependymal elements of the fourth ventricle of the rat were examined by scanning electron microscopy (SEM) and by the transmission electron microscopy (TEM). The results confirm the following aspects: 1) The presence of supraependymal elements and microvilli in the ependymal territories, including the sites where the cilia completely cover the ependymal surface; 2) The existence of cilia with oval or spherical thickenings together with supraependymal bulbs similar in size to those of the larger ciliary swellings; 3) Identification of the long supraependymal fibres with intermittent fusiform dilations observed under the SEM with the nerve fibres seen under the TEM; 4) The existence of intraventricular axodendritic synapses.
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