Two examples of olfactory indicators are Onion and vanilla extracts. When either of the two are mixed with a solution containing an acid, the smell of the indicator does not change. Whereas, when mixed with a solution containing a base, the smell of the indicator fades away and cannot beRead More →

Decades later, researchers hypothesized that the exceptional ability that smells have to trigger memories — known as “the Proust effect” — is due to how close the olfactory processing system is to the memory hub in the brain. How long does olfactory memory last? A study conducted at the RockefellerRead More →

A damaged sense of olfaction is severely disrupting: the joy of eating and drinking may be lost, and depression may result. Furthermore, there are dangers associated with the loss of smell, including the inability to detect leaking gas or spoiled food. Why is the olfactory nerve unique? Derived from theRead More →

Olfactory sense is, in terms of evolution, one of the oldest senses, allowing the organisms with receptors for the odorant to identify food, potential mating partners, dangers and enemies. For most living creatures and for mankind smell is one of the most important ways of interaction with the environment. WhenRead More →

Analogous to neural glial cells, the supporting cells are non-neural cells in the olfactory epithelium that are located in the apical layer of the pseudostratified ciliated columnar epithelium. There are two types of supporting cells in the olfactory epithelium: sustentacular cells and microvillar cells. Is olfactory mucosa ciliated? The ciliatedRead More →