Zur Morphologie und Histologie des Fischlabyrinths

Denker, Alfred

doi:10.1007/bf01583524

Cited by 4 publications

(2 citation statements)

References 2 publications

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“…The gross structure of the inner ear of the upside-down catfish is very similar to the ear from other otophysine fishes (Retzius 1881;de Burlet 1929;Wohlfahrt 1932;Denker 1935). The membranous labyrinth ( Fig.…”

Section: The Gross Anatomy Of the Labyrinthmentioning

confidence: 67%

Structure and Innervation of the Inner Ear Sensory Organs in an Otophysine Fish, the Upside–down Catfish (Synodontis nigriventrisDavid)

Jensen

1994

Acta Zoologica

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Jensen, J. C. 1994. Structure and innervation of the inner ear sensory organs in an otophysine fish, the upside-down catfish (Synodontis nigriventris David).-Acta Zoologica (Stockholm) 75: 14S160.All the sensory epithelia of the inner ear in the upside-down catfish (Synodontis nigriventris David) were examined by light microscopy. The morphology of the membranous labyrinth and the orientation of the hair cells is similar to what has been found in other otophysine fishes. The sensory cells are of variable size both inter-and intraepithelially; particularly the macula sacculi is equipped with heterogeneous receptors. Regional differences in the hair cell density are presented for all the otolith organs plus the papilla neglecta. Nerve stainings reveal regional differentiation. The central areas are innervated by stout and stubbly nerve endings intermingled with a few thin nerve fibres while the peripheral parts are reached exclusively by thin axons. In the anterior region of the macula sacculi are found unique cup-shaped axon terminations which surround the basal parts of a single or a few sensory cells. The number and diameter range of the myelinated nerve fibres as well as the hair celVaxon ratio are presented. Electron microscopy demonstrates the presence of unmyelinated axons in all inner ear nerve ramuli.

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