Where are the structures that signal abnormalities in the internal environment of the body located?

Any organism consists of many different organs, muscles, tissues, and more. In order for the brain to know about certain abnormalities in certain organs and tissues, our body has specific receptors and systems. There is a myth that a person has five senses. In fact, there are several dozen of them. This is a feeling of temperature, body position, pressure in the digestive organs, a feeling of poisoning, hunger and many others. This is due to various types of receptors and nerve tissues that connect the receptors to the brain.