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You are watching: Why are taste and smell called chemical senses

Purves D, Augustine GJ, Fitzpatrick D, et al., editors. Neuroscience. 2nd edition. Sunderland also (MA): Sinauer Associates; 2001.


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Overview

Three sensory units connected with the nose and also mouth—olfaction, taste, and the trigeminal chemosensory system—are dedicated to the detection of chemicals in the atmosphere. The olmanufacturing facility system detects airborne molecules dubbed odors. In humans, odors carry out indevelopment about food, self, other civilization, pets, plants, and also many various other facets of the setting. Olfactory information have the right to affect feeding habits, social interactions and, in many kind of pets, remanufacturing. The taste (or gustatory) system detects ingested, generally water-soluble molecules referred to as tastants. Tastants administer indevelopment about the top quality, quantity, pleasantness, and also safety of ingested food. The trigeminal chemosensory device offers information about irritating or noxious molecules that come right into call via skin or mucous membranes of the eyes, nose and mouth. All three of these chemosensory systems rely on receptors in the nasal cavity, mouth, or on the confront that interact with the relevant molecules and also geneprice receptor and action potentials, therefore transmitting the effects of chemical stimuli to correct areas of the central nervous device.

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The Organization of the Olmanufacturing facility SystemOlmanufacturing facility Perception in HumansPhysiological and also Behavioral Responses to OdorantsThe Olmanufacturing facility Epithelium and Olmanufacturing facility Receptor NeuronsThe Transduction of Olmanufacturing facility SignalsOdorant Receptors and Olfactory CodingThe Olmanufacturing facility BulbCentral Projections of the Olmanufacturing facility BulbThe Organization of the Taste SystemTaste Perception in HumansThe Organization of the Peripheral Taste SystemIdiosyncratic Responses to Various TastantsTaste Receptors and the Transduction of Taste SignalsNeural Coding in the Taste SystemCentral Processing of Taste SignalsTrigeminal ChemoreceptionSummaryMore Reading

By agreement with the publisher, this book is obtainable by the search feature, yet cannot be browsed.