Pyloric canal

The pyloric canal of the stomach in domestic animals connects the stomach to the duodenum. It is part of the pyloric part of stomach (pyloric region), which includes the pyloric antrum, pyloric canal, and pyloric sphincter. The pyloric canal itself is a narrow passage that facilitates the movement of stomach contents into the small intestine.

In dogs, the pyloric canal has been observed to have a length of approximately 16 to 17 mm and an overall in vivo diameter of 22 mm, with the muscular part of its wall being 2 to 3 mm thick.[1]

The pyloric canal plays a crucial role in regulating the passage of partially digested food from the stomach to the duodenum, ensuring that the contents are appropriately processed before entering the small intestine.

The pylorus, including the pyloric canal, functions as a gatekeeper, controlling the flow of gastric contents and preventing duodenogastric reflux. This regulation is essential for proper digestion and nutrient absorption.[2]