NSCI 201 Lecture Notes - Lecture 11: Piriform Cortex, Olfactory Bulb, Olfactory Epithelium
12 Mar 2018
School
Department
Course
Professor
Document Summary
Three senses associated with nose and mouth: olfactory (smell) Provide information about self, other people, animals, plants, food, hazards . Influences social interactions, reproductions, defensive responses, feeding: gustatory (taste) Detects ingested tastants : trigeminal (chemical irritant) mucous membranes. Provide information about quality, quantity and safety of food. Provides information about irritating and noxious chemicals in contact with skin or. We will not cover this sense in detail. Smell and taste are mediated by g-protein-coupled receptors. Overview: odorants interact with olfactory receptor neurons found in the olfactory epithelium that, axons from receptor cells project to the olfactory bulb through a porous bone called the lines the interior of the nose cribriform plate. Damage to cribriform plate can lead to anosmia. Information is processed directly and doesn"t pass by the thalamus: the olfactory bulb projects to the pyriform cortex in temporal lobe and to forebrain olfactory tract.
