PSYC 271 Chapter Notes - Chapter 12: Taste Bud, Lingual Papilla, Chemoreceptor
13 Jul 2016
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Document Summary
Sense of taste/gustation permits us to perceive the characteristics of what we eat and drink. Contact chemoreception because we must come into contact with a substance to experience its flavour. Gustatory cells are taste receptors housed in specialized sensory organs termed taste buds on the tongue surface. Dorsal surface of the tongue there are epithelial and connective tissue elevations called papillae (filiform, fungiform, vallate, and foliate) Short and spiked, cover 2/3rds over the dorsal side of the tongue. Blocklike projections located on the tip and sides of the tongue. Less common arranged in a v shape posterior dorsal surface of the tongue, each with a deep and narrow depression. They are house along the walls of these with sides facing the depression. Folate: not well developed, ridges on the posterior lateral sides and only house a few taste buds during infancy and early childhood. Each taste bud has numerous receptors called gustatory cells enclosed by supporting cells.
