The main body systems of the frog are the digestive system, circulatory system, urogenital system, excretory, respiratory, and the frog's skeleton and muscles. The frog digestive system starts in the mouth. Prey, which is sometimes caught by the frog's sticky tongue, is diced by structures in the mouth that are tooth-like. The food then travels down the esophagus, into the stomach, where, the food is softened, somewhat broken down, and then stored. This will take …showed first 75 words of 1044 total…

…showed last 75 words of 1044 total…which vessels called the renal vessels are attached. On top of the kidneys is where fat bodies are located. Tubes like structures called oviducts are located on the side of the kidneys, and on top of these is the ostium, where eggs from the body cavity (where eggs are located) enter the oviducts. From the oviducts the eggs will exit out the body through the cloaca. These are the main body systems of the frog.