Resumen

CARVALLO, Pamela  y  HENRIQUEZ - PINO, Jorge. Architecture of the Ventricular Fibers in Ostrich Heart (Struthio camelus). Int. J. Morphol. [online]. 2010, vol.28, n.2, pp.353-356. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022010000200002.

The arrangement of the ventricular myocardial fibers of the ostrich heart (Struthio camelus) was macro and mesoscopically studied in 14 ostrich hearts, dissected by an adaptation of the Pettigrew method. Three different myocardial layers ­ superficial (subepicardial), middle and deep (subendocardial) ­ have been identified according to the ventricular myocardial fibers orientation. The superficial fibers are common for both ventricles, however, the fibers of the middle and deep layers, are unique to each ventricle. The left ventricle presents a thick middle muscular layer, which also constitutes the main part of the interventricular septum and the heart apex.

Palabras clave : Myocardium; Ventricle; Ostrich.

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