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A Histological Study on Venom Apparatus of Montivipera xanthina (Gray, 1849) (Serpentes, Viperidae) BABT
Kılıç,Dilara Çolak; Akat,Esra; Arıkan,Hüseyin.
ABSTRACT This is the first report describing morphological and histological structure of venom apparatus in Montivipera xanthina. The venom gland apparatus of M. xanthina was composed of four distinct parts, main venom gland, primary duct, accessory gland and secondary duct. The main venom gland was composed of acini. The accessory gland was formed by long and ramified tubules. Nine fangs were detected in one half of the upper jaw each at different stage of development. Only one tooth was functional and the eight remaining fangs form a replacement series. The venom apparatus of viperid snakes are the most effective venom-delivery system among vertebrates and have been the focus of scientific interests for many years. Despite this interest, there are few...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Montivipera xanthina; Venom gland; Fang; Dentine; Odontoblast.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132016000100425
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Micrometric measurement of the density of stained odontoblast processes Biocell
Kohli,Alicia; Pezzotto,Stella M.; Garcia,Graciela; Poletto,Leonor C..
The embryological, structural and functional unit of the dentine-pulp complex shares the odontoblast, located in the border of the dentine pulp, with basal nuclei and organelles. The odontoblast process emerges from its apical pole. It is formed by microtubules, microfilaments and vesicles covered by membranes penetrating the dentinal tubules, isolated from the inter-tubular matrix, along the extent of the dentine. The objective of this study was to evaluate the efficacy of three staining techniques: hematoxylin-eosin, periodic acid-Schiff and Schmorl, by staining the process, from beginning to end, and compare the results with the erosion technique. Thirty human teeth were employed in the trial; after their extraction the pulp was fixated, the pieces...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pulp dentine organ; Odontoblast; Odontoblast process.
Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452011000200003
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