Variations in the Shape of Atrioventricular Cusps

Mishra, Pratyush; Rao, Manvikar Purushottam; Paranjape, Vaishali; Kulkarni, Jyoti

doi:10.4103/2321-449x.158871

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“…In this study, hearts had 2 eminent cusps and 1-3 commissural (accessory) cusps. The shape of the anterior cusp was shown as semicircular and triangular [30,42,52] or rectangular [42], while that of the posterior cusp as semioval [52], triangular or rectangular [42]. The results of our study were also in parallel with the literature.…”

Section: Discussionsupporting

confidence: 86%

Morphology of the atrioventricular valves and related intraventricular structures in the wild pig (Sus scrofa)

et al. 2017

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Morphology of the atrioventricular valves and the intraventricular related structures were observed and the findings were compared broadly to the literature, in the 7 hearts of the wild pigs (Sus scrofa) by applying macroscopic and microscopic techniques. In all hearts examinated, the tricuspid and mitral valves were precise, composing three and two cusps resepectively. The papillary muscles observed in mammalian heart in general were found in both the ventricles, additionaly there were small unnamed papillary muscles in the left ventricle of the three samples. The septomarginal trabecula and false chords were present in the right ventricles, microscopically possessing myocardial fibers, connective tissue and purkinje cells while the false chords were located in all the left ventricles but the septomarginal trabecula was found in the three samples only. Both the connective tissue and purkinje cells were present in these two structures but the myocardial fibers. Presence of the myocardial fibers in the right ventricle may have an effect on the ventricle geometry.

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