Publicação: Myoarchitecture and vasculature of the heart ventricle in some freshwater teleosts
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Blackwell Publishing
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The morphological characteristics of the ventricular myocardium and of coronary vascularization were studied in three freshwater teleost species, Piaractus mesopotamicus, Colossoma macropomum and Clarias gariepinus (African catfish), by correlating their ventricular shapes and swimming habits. In Piaractus mesopotamicus and Colossoma macropomum, species with highly active swimming habits, the cardiac ventricle showed a pyramidal shape and a richly vascularized myocardium consisting of an outer compact layer and inner spongy layer. In Clarias gariepinus, a less active species, we observed a saccular ventricle with a mixed myocardium and coronary arteries, in contrast to the ventricular structure of other species described in the literature.
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coronary arteries, morphology, myocardium
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Inglês
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Journal of Anatomy. Oxford: Blackwell Publishing Ltd, v. 200, n. 5, p. 467-475, 2002.
