These are present only in the upper jaw. The frog's tongue is highly specialized. Normally, the tip pf its tongue is folded backward toward the throat. From this position the frog can flick it out rapidly to grasp any passing prey. To better hold this prey, the tongue is sticky.
Food passes from the frog's mouth into the stomach by way of the esophagus.
From the stomach, the food moves into the small intestine, where most of the digestine occurs. Large digestive glands, the liver and the pancreas, are attached to the digestive system by ducts. A gall bladder is also present. Liquid wastes from the kidneys travel by way of the ureters to the urinary bladder. Solid wastes from the large intestine pass into the cloaca.