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Pereira, J. G., Sousa, K. R., Abreu-Silva, A. L., Melo, F. A., & Costa, A. D. C. (2003). Histology of the spleen of the muçuã kinosternon scorpioides (chelonia: kinosternidae). Acta Microscopica, 12(Supplement B, September 2003 XIX Congress of the Brazilian Society for Microscopy and Microanalysis), 427–428. 
Added by: Admin (14 Aug 2008 20:38:53 UTC)
Resource type: Journal Article
BibTeX citation key: Pereira2003
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Categories: General
Keywords: Histologie = histology, Kinosternidae, Kinosternon, Kinosternon scorpioides, Morphologie = morphology, Schildkröten = turtles + tortoises
Creators: Abreu-Silva, Costa, Melo, Pereira, Sousa
Collection: Acta Microscopica
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Abstract     
The muçuã or jurará (Kinosternon scorpioides) belongs to the family Kinosternidae, it measures from 20 to 30 cm of length. Its is a turtle of fresh water, typical of the meadows of the Amazonian area , and Maranhão state, Brazil, where it is found on the edge of rivers and in the slope from Maranhão . This species doesn’t have its future guaranteed, because it is threatened by the burnings, pollution, indiscriminated hunts and deforestation . The present work was performed to study the histology of the spleen of six specimens of muçuã, which were obtained through captures made by IBAMA – MA, process n.º 02012.002400/99-31. The animals were sacrificed with a lethal dose of sodium thiopental at 25% and soon afterwards, dissected. The spleen was fixed in liquid of Bouin for 12 hours followed by inclusion in paraffin. The sections, 4µm of thickness, were stained by the techniques of Hematoxylin-Eosin (HE), Periodic Acid of Schiff (PAS), Trichrome of Gomori and Trichrome of Mallory for identification and histological description. The results revealed that the spleen of K. scorpioides is formed by capsule and parenchyma (FIG. 01). The capsule of dense conjunctive tissue emits muscular trabeculae into the interior of the organ and have collagenous fibers (FIG. 02). The parenchyma consists of red and white pulp separated for a marginal zone (FIG. 03). The lymphoid tissue of the white pulp is well-organized with nodules surrounding central artery which there is a periarterial lymphatic sheaths (FIG. 04). The red pulp is formed by vascular tissue and the venous sinuses are filled with blood cells. The findings are in agreement with those described in birds and mammalia , lizards . In conclusion, the spleen of the K. scorpioides is similar to other species of vertebrates.
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