Histological study. Heart. African WhiteRHinoceros

Abstract

To study the philosophical structure of the heart of white rhinoceros.We made partin em-bedsections of the heart wall.We kept the sections by he,Observed the sections under bright field microscope,And photographed by photography.The heart structural features were observed and analyzed by image analysis system.The Cardiff wall can be divided into endocardium,Myocardium and epicardium from inside to outside.The average thickness Endocardium was 260μM.Myocardium was thick,The left ventricle myocardium was tickest,AV-eraging 33mm.And the average thickness of epicardium was 225μM.Purkinje fibers arranged in groups of 2-3 rows under the endocardium,And formed a round nodouble between the atrium and ventricle.The diameter of Purkinje fiber was about 52μM and most cells were irregular,Square,Or elongated stripes with the longest major axis up to 286μM.Most nucleus were round,Lost at the edge of cells.The diameter of Venetian muscle fiber was 10μM.Nether myocardial stripes nor intercalated disks were obvious.Cardiac muscle fibers arranged closely,With full blood vessels along them.Conclusion:This study provide reliable physical evidence to rhinoce-ros physiology and clinical veterinary and other related disciplines.