Summary
Long and slender, bulb-like endings of the light pinealocytes of the rabbit extend towards the perivascular space. The processes extrude secretory material in a typical way: A dense core is surrounded by numerous small vesicles (“rosette-like structure”). The accumulation of vesicles disappears while the dense material gets into the intercellular or perivascular space. A “postsynaptic membrane” does not exist.
Zusammenfassung
Die hellen Pinealozyten des Kaninchens schicken lange, schmale, kolbenförmig endigende Fortsätze in den perivaskulären Bindegewebsraum. Das Sekret der Zellen wird in typischer Weise ausgeschieden: Zahlreiche kleine Bläschen umgeben einen dichten Kern („Rosettenstruktur“). Die Ansammlung von Bläschen verschwindet, während das dichte Material in den interzellulären oder perivaskulären Raum gelangt. Eine „postsynaptische Membran“ fehlt.
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Leonhardt, H. Über axonähnliche Fortsätze, Sekertbildung und Extrusion der hellen Pinealozyten des Kaninchens. Zeitschrift für Zellforschung 82, 307–320 (1967). https://doi.org/10.1007/BF00323857
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DOI: https://doi.org/10.1007/BF00323857