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Morphology of the vas deferens of the budgerigar (Melopsittacus undulatus)

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Repositório Institucional UNESP
Keywords
  • Aves
  • Birds
  • Budgerigar
  • Epithelium
  • Morphology
  • Vas Deferens
  • Bird
  • Cell Structure
  • Cytoplasm
  • Electron Microscopy
  • Epididymis
  • Epithelium
  • Melopsittacus Undulatus
  • Morphology
  • Nonhuman
  • Vas Deferens
  • Melopsittacus Undulatus
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Abstract

A morphological study of the budgerigar vas deferens was conducted to demonstrate the electron-microscopic features of its epithelial lining. The analysis showed that the vas deferens of the budgerigar was found to be of a tubular and serpentine structure, continuous with the epididymal region and lined with stereo ciliated pseudostratified epithelium, which contained folds projecting into the tubular lumen and a characteristic brush border. The epithelium consists of ciliated and non-ciliated cells with different electron densities. Ciliated cells were characterized by two morphologically distinct configurations: some cells were columnar and other ciliated cells were longer, thinner and dark. Non-ciliated cells showed apical cytoplasmic expansions, which projected into the tubular lumen as protrusions.

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