The Pyloric Sphincter
The Sphinctea
Yes, frogs have a stomach.
A band of muscles at the opening of the stomach called the Cardiac (due to its proximity to the heart) Sphincter.
The pylorus in frogs functions as the muscular valve that regulates the passage of food from the stomach into the small intestine. It helps control the flow of partially digested food and stomach acid from the stomach to the intestines for further digestion and absorption.
it stays closed until the stomach contents are isotonic with respect to the rest of the body.
sphincter
It is called the Pylorus.
The stomach and first part of the small intestine (duodenum) is connected by pylorus which has 2 parts. The on the stomach opening is called pyloric antrum and the opening in the duodenum is the pyloric canal type.
tricuspid valve,bicuspid valve and pulmonary valve
Intestines are present underneath frogs stomach i.e on the posterior side of the body.
The cardiac sphincter is located at the top of the stomach and controls the direction of food passing through the esophagus so that no food will re enter the esophagus. The Pyloric sphincter stops bile and digested food from entering the stomach, this valve is located at the bottom of the stomach.
Actually The small intestine is not connected to the stomach. Between the stomach and the small intestine is the Duodendum. At the end of the small intestine the colon, or large intestine begins.