Freeze-fracture aspects of the junctional complexes in the round window membrane

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Abstract
Replicas of the freeze-fractured round window membrane were studied in chinchillas. Morphologically identifiable zonulae occludentes were found between the cells facing the tympanic cavity and between the cells bordering the perilymphatic space. Gap junctions were only found between the perilymphatic cells. Untersuchung der Runde-Fenster-Membran des Chinchillas mit Hilfe der Gefrierbruchmethode. Zonulae occludentes werden morphologisch sowohl zwischen den Zellen der tympanalen Lage als auch zwischen denen der perilymphseitigen Zellschicht nachgewiesen. “Gap junctions” verbinden — nach bisherigen Befunden — lediglich die perilymphatischen Zellen.