BIO 3303 Lecture Notes - Lecture 10: Taste Receptor, Vomeronasal Organ, Mecha
8 Sep 2017
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Chemoreception: regulating composition of body fluids, avoiding toxins with the ones on our tongue, finding food for nutrition, finding mates, conspecific recognition. Chemoreceptor- cell that are specialized for sending chemical messages from the environment. Specialized sensory cells of neural or epithelial origin. Chemical signal binds to the membrane bound receptor protein that regulates permeability of cell membrane. *** we will focus on external chemoreceptors (smell and taste) In snakes, the comeronasal organ is different in the way that it is a closed off pouch, that has a whoe bunch of receptors on it that measure chemical receptors in the encironment. When snakes stick out their tongue they stick it back into the vomeronasal organ in which it can sense concentratioin different on each side of its tongue. This organ has something to do with pheromones. They are trying to get air into the comveronasal organ. They can sense if there is someting specific around.
