PHGY 209 Lecture Notes - Lecture 8: Olfactory Bulb, Olfactory Receptor, Taste Bud
Document Summary
Sensory modalities: sense of taste & smell are both mediated by chemoreceptors. Taste (gustation): located on the tongue are papillae, lining these structures, around the tongue, are crevices which have taste buds. The taste afferents then sends that information to the brain: chemicals that we perceive have to enter these taste pours and cells, we only sense a few gustatory sensations despite having as much as 10 000 taste buds! Taste transduction: taste cells are specialized for different types of flavours. You don"t have much selectivity when it comes to sense of taste. The sensation of all the differences in food we eat come from our sense of smell: sour (high acid) : the sense of taste associated with sour food is associated with the. : sodium (na+) from the food we take in enters the taste cells through sodium: saltiness channels. amount of acid in it. The highest the acid, the more sour the flavour is.
