What is the function of the 3 layers of muscle in the stomach?
three different layers of smooth muscle, each with fibers running in a different direction: horizontal, vertical, and diagonal. The muscles are responsible for mixing the chyme and moving it through the stomach to the small intestine.
The stomach is composed of five layers. Starting from the inside and working our way out, the innermost layer is called the MUCOSA. Stomach acid and digestive juices are made in the mucosa layer. The next layer is called the SUBMUCOSA. The submucosa is surrounded by the MUSCULARIS, a layer of muscle that moves and mixes the stomach contents. The next two layers, the SUBSEROSA and the SEROSA are the wrapping for the stomach. The serosa is the outermost layer of the stomach and is responsible for maintaining the shape of the stomach. The outermost layer also consists of lipids and fats that help in absorbing shock and protect the stomach from any kind of trauma.
Join our real-time social learning platform and learn together with your friends!