Macro Anatomical Study on the Heart, Lung, Trachea, Kidney and Liver of Common Rat Snake (Ptyas mucosa)

The Common rat snakes (Ptyas mucosa) control the rat in paddy field so it is also called farmer's friend. The present study was conducted on the heart, lung, trachea, kidney and liver of Common rat snake (Ptyas mucosa) of about 2.5 years of age. The heart was found secured in the pericardial sac and two aortas originated cranially consisting of left and the right. Lung consisted of highly vascular anterior portion and avascular posterior portion called air sac. Both the kidneys were highly lobulated and elongated. Right kidney was closer to the head than the left one. The trachea had complete ring. The liver was elongated and no distinct separate lobes were present instead the surface of the liver appeared lobulated. These studies will be helpful to wildlife veterinarians in disease control regimes.