ANP 1106 Lecture Notes - Lecture 15: Taste, Lingual Papilla, Olfactory Bulb

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: Jacqueline Carnegie

Document Summary

The surface of the tongue has structures called papillae which gives it a rough texture. (1) fungiform papillae which is on the soft palate, internal cheeks, pharynx, epiglottis, and predominantly on the end and sides of the tongue where there are 10000 of them. (2) circumvallate papillae which forms a series of 7-12 towards the back of the tongue. The papillae contain taste buds each consisting of. There are 3 types of epithelial cells: (2) gustatory cell which is the chemoreceptor containing microvilli which adapts to stimuli in 1-5 minutes (they do not produce an action potential) (3) basal cells which renew the supporting and gustatory cells every. Umami is a meaty flavor triggered by glutamte as in monosodium-glutamate (msg) and it"s receptors are distributed all over the tongue. 5 types of gustatory cells shown in fig on slide 17. Each cell type has receptors specific for the stimulus to which it responds.