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 mucosa and the sub-mucosa are present as folds termed rugae. When the stomach is distended with food, the rugae are flattened out and appear smooth. Cell types in the stomach that help with digestion. There are four main types of cells for stomach secretions spread all over the inner surface of the stomach: