Pylorus
Pylorus
Definition
The pylorus is the end of the stomach that connect it to the duodenum.
It is divided into two parts, the pyloric antrum, which connects to the body of the stomach, and the pyloric canal, which connects to the duodenum by the pyloric orifice.
The pyloric sphincter, or valve, is a strong ring of smooth muscle at the end of the pyloric canal which lets food pass from the stomach to the duodenum. It receives sympathetic innervation from the celiac ganglion.
References
Text by Antoine Micheau, MD - Copyright IMAIOS