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  • Title: Scanning and transmission electron microscope studies of the supraependymal neurons in the third ventricular wall of the Arctic lamprey, Lampetra japonica.
    Author: Chiba A, Honma Y, Nakai Y, Shioda S.
    Journal: Arch Histol Jpn; 1981 Nov; 44(5):477-84. PubMed ID: 7325785.
    Abstract:
    Scanning electron microscopy of the third ventricular wall of the arctic lamprey, Lampetra japonica, revealed the occurrence of supraependymal neurons in several regions of the ventricular surface. These neurons--as varicose fibers of various calibers--traversed among the cilia, microvilli, and bulbous protrusions of the ependymal surface. Occasionally synapse-like contact were found between these nerve fibers and the intraventricular processes of the cerebrospinal fluid (CSF)-contacting subependymal neurons in the hypothalamus. A possible function of the supraependymal neurons is discussed in relation to the hypothalamic neuroendocrine system.
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