GENERAL HISTOLOGY

Detailed explanation-1: -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.

Detailed explanation-2: -Olfaction, the sense of smell detects and discriminate odors as well as social cues which influence our innate re-sponses. The olfactory system in human beings is found to be weak as compared to other animals; however, it seems to be very precise.

Detailed explanation-3: -For example, the olfactory system is important for detecting food and providing good taste quality, for avoiding potential dangerous situations in long-and short distance, like fire and microbial threats. Additionally olfaction seems to play a key role in mate choice and helps to detect emotions in other people [2].

Detailed explanation-4: -Olfactory derives from the past participle of the Latin olfacere ("to smell"), which was formed from the verb olēre ("to give off a smell") and facere ("to do").