Abstract
Rainbow trout swimbladder epithelium consists of non-ciliated and ciliated cells in the ratio of greater than 2∶1. Non-ciliated cells contain vesicles filled with a mucus-like material and similar material is found lining the surface of the swimbladder lumen. Morphological evidence for discharge of the vesicle contents was obtained. In addition, nonciliated cells contain osmiophilic lamellar bodies which resemble the cytosomes of lung alveolar cells of air-breathing vertebrates. The non-ciliated cells do not appear to be involved in a process of active gas secretion.
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Schedule a callMore From: Zeitschrift für Zellforschung und mikroskopische Anatomie
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