Pyloroplasty is the medical term meaning surgical repair of the pylorus, the pyloric valve, or the pyloric region.
pyloric sphincter valve pyloric sphincter valve
The pyloric valve or sphincter regulates the flow of chyme out of the stomach into the duodenum.
The pyloric sphincter is the exit of the stomach.
After it leaves the pyloric valve, it enters the beginning of the small intestines.
at the end of the stomach , regulates food exiting the stomach pyloric spnincter valve
Pyloric valve or pyloric sphincter
Valvectomy is the medical term meaning surgical removal of a valve.
Valvotomy is the medical term meaning surgical incision into a valve.
MVP is the medical abbreviation meaning mitral valve prolapse
In a human, it's the pylorus, pyloric valve or pyloric sphincter valve. Not sure about frogs.
Mitral stenosis is the medical term meaning narrowing of the mitral valve.