What Is the Olfactory Epithelium?

Smell is a feeling. It is involved in two sensory systems, the olfactory nervous system and the nasal trigeminal nervous system. Smell and taste integrate and interact. Olfactory is a prerequisite for pheromone communication. Smell is a sense of distance, which means that it is the feeling of chemical stimulation through long distances. In contrast, taste is a sense of closeness.

Olfactory receptor

Different people have very different olfactory sensitivities to the same odor substance. Some people even lack the olfactory ability possessed by ordinary people. We usually call it blindness. Even for the same person, the olfactory acuity also changes greatly in different situations. For example, certain diseases have a great impact on the sense of smell. Colds and rhinitis can reduce the sensitivity of the sense of smell. Temperature and humidity in the environment

The olfactory organ is composed of two left and right nasal cavities. These two nasal cavities communicate with the outside world through the nostrils. There is a middle nasal diaphragm. The mucosa on the surface of the nasal diaphragm is connected to the mucous membrane covering the entire inner wall of the nasal cavity. The function of olfactory sensation is to make the body feel various smells.

The olfactory epithelium encloses Hurtzitz cells, which is the center of the olfactory sense. Hurtzell cells are surrounded by

Olfactory is received by the olfactory ciliary located at the end of the dendrite of the olfactory cell, then transmitted to the cytoplasm and then to

In addition to often referring to the animal's sense of smell, the sense of smell also has certain abstract meanings, such as intuition and the sensitivity of political sense of smell. It generally refers to the sensitivity of people to certain things or politics, and has nothing to do with the concept of animal smell.

"Intuition" synonym can be replaced and substituted in some cases. Refers to the situation is not directly stimulated by the environment, but to rely on experience to feedback. Common words such as: political sense of smell, sharp sense of smell, etc. A person who has a keen sense of judgment in a certain field says that he has an "olfactory sense" in this area, and its formation has two basic elements: the first is a particular love of obsession; the second is a wealth of accumulated experience. The so-called "sniffness" usually means that through correct judgment, you can get ahead first. ^[4]