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

Authors
  • Baldan, C.
  • Orsi, A. M.
  • Viotto, M. J. S.
  • Baraldi-Artoni, S. M.
  • Stefanini, M. A.
Publication Date
Jan 01, 2003
Source
Repositório Institucional UNESP
Keywords
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Unknown
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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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