author(s)
A Deka, Kabita Sarma, J Rajkhowa, J Ahmed, S Sinha and J Kachari

abstract
The present studies were conducted in the heart of Asian Elephant calf (Elephas maximus). The heart of the animal were obtained from Delaishree, Sonitpur East Division, Diplonga range office and Pakke Tiger reserve forest, Arunachal Pradesh, respectively. The hearts of Asian Elephant were collected at the time of post mortem and gross anatomical studies were made on it. Grossly, the heart of Asian Elephant calf (Elephas maximus) composed of base and apex which were bifid. The heart consisted of four chamber viz., right atrium, right ventricle, left atrium and left ventricle. The right atrium consisted of four chief opening, deep fossa ovale, intervenous crest, crista terminalis and musculi pectineti. The right atrioventricular opening contained tricuspid valve. Right ventricle presented three numbers of bifid papillary muscle, chordae tendinae and distinct trebeculae coronae muscle. The left atrium contained opening of pulmonary vein. The left ventricle presented bicuspid valve, chordae tendinae and two numbers of papillary muscles.