What are the main organs of the frog digestive system?
The gastrointestinal tract of a frog changes depending on what part of the life cycle the frog is in. A tadpole has a less specialized mouth, know as an oral disk, which is rounded and ringed with little teeth designed to eat small, soft foods. An adult frog has a wide mouth with a stronger jaw. The adult will also have a sticky tongue to capture prey.
From there, food would move to the esophagus, and into the stomach where food is broken down. After getting stored in the stomach, the food will move into the small intestine along with digestive juices from the pancreas and liver (pancreatic fluid and bile, specifically). After a period in the small intestine where nutrients are absorbed, the food is pushed down to the large intestine. Here, the organ removes as much water as possible before excreting the food from the cloaca. This part of the digestive system is the same for both tadpoles and frogs.
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