Alimentary Canal of Frog : It is a short tube starting from mouth to cloaca. Mouth opens into buccopharyngeal cavity. It has many maxillary teeth as the margin of upper jaw. Vomerine teeth lie at the floor of this cavity. The tongue is bilobed and muscular. It is used to capture the prey. Gullet opens into the oesophagus which is distended into stomach. Stomach follows small and large intestine. The rectum opens into the cloaca. Liver and pancreas are digestive canals.