pyloric valve
The valve preventing the movement of chyme from the duodenum into the stomach is called the pyloric valve. The pyloric valve consists of a ring of smooth muscle and is connected to the duodenum.
Pyloric Vavle
Duodenum
Chyme is the semifliud mass of partly digested food that is passed from the stomach to the duodenum.
Chyme is expelled from the stomach into the duodenum. The duodenum is the first section of what will become the small intestine inside most vertebrates.
The pyloric sphincter regulates the entry of chyme into the duodenum.
more chyme into the duodenum
As chyme moves through the duodenum, it becomes less acidic and more alkaline. This is because the pancreas secretes bicarbonate ions into the duodenum, which helps neutralize the acidic chyme coming from the stomach. Additionally, the liver also contributes bile salts to the duodenum, which further helps to alkalize the chyme.
the stomach
the stomach is the organ th
It serves to regulate the movement of food out of the stomach and prevents bile in the small intestine from moving back into the stomach.
The pyloric sphincter muscle regulates the flow of chyme from the stomach to the duodenum just a few mL at a time.