The fuse is a device used in an electrical circuit for protecting electrical devices against overloads and or short circuit. It is the simplest and cheapest devices used for interrupting an electrical circuit under short circuit, or excessive overload, current magnitudes.
This shows an image through the wall of the body of the stomach at low power. You should be able to identify the three major layers seen here - the mucosa, submucosa and muscularis externa. The mucosa is full of gastric glands and pits, and there is a prominent layer of smooth muscle - the muscularis mucosa. The contraction of this muscle helps to expel the contents of the gastric glands. The muscularis externa layer has three layers of muscle.
The stomach is divided into 5 regions: The cardia is the small area in the upper portion of the stomach near the esophagus. This region includes the cardiac sphincter, which is a ring of muscle where the esophagus and stomach join. The cardiac sphincter acts as a valve that prevents the stomach contents from going back up into the esophagus.