Morphological description of heart and large vessels of the jacaré-do-pantanal (Caiman yacare Daudin, 1802) from a crocodile breeding Center

Pesquisa Veterinária Brasileira

Drummond, Cristina D.³  Almeida, Fernanda R.C.L. de²  Sousa, Raimundo V. de³  Vicente Neto, João¹  Cotrin, João V.³  Alves, Ana C.³  Resende, Henrique R.A. de³  Ribeiro, Daniel B. de C.L.³ 

[1] Instituto Federal do Mato Grosso, Cáceres, Brasil;UFMG, Belo Horizonte, Brazil;Universidade Federal de Lavras, Lavras, Brazil

关键词:  Anatomy;    histology;    heart;    reptile;    Caiman yacare;    jacaré-do-pantanal;   

DOI  :  10.1590/S0100-736X2016001300002

来源: Colegio Brasileiro de Patologia Animal-CBPA

【 摘 要 】

:The aim of this study was to describe anatomical and histological aspects of the heart of Caiman yacare from a crocodile breeding center. For this purpose, we have chosen and further studied 13 specimens which were perfused and preserved in a 10% formaldehyde solution and they were subjected to the specific anatomical techniques. The heart was separated and samples were collected and submitted to the specific histological procedures. Macroscopically, the heart is four-chambered and besides two atria and two ventricles, has a structure called arterial cone from which the large vessels of the heart emerge. Two aortas, left and right, were identified. The left aorta emerges from the right ventricle and communicates with the systemic trunk through the Foramen of Panizza. From a histological point of view, the heart is typically composed of epicardium, myocardium and endocardium. According to these observations, it is assumed that the histology of the heart of "Jacaré-do-Pantanal" is similar to other species of reptiles. However, there are some anatomic particularities, which possibly represent the adaptations allowing the perpetuation of the species.Index

【 授权许可】

Unknown