PSY 252 Lecture 19: PSYCH 252 - Lecture Mar 26&28
Document Summary
Chemicals come into direct contact with receptors on either your tongue or in your nose. Chemosensors: bitter, sweet, sour, salty, umami (savoury) When his findings were translated to english there was an incorrect translation to claim that different regions were specific for different chemosensors. In fact, all regions can detect all the different taste stimuli. Taste receptor cell (trc) bundled in taste buds: bumps/taste buds called papilla, taste buds are situated differently on the tongue, super tasters have more taste receptors, circumvallate papilla: Ridge of bumps at the back of the tongue: folate papilla. Ridges on the side of the tongue: fungiform. Near the tip of the tongue: 40-100 trcs, within the taste bud is the taste receptors that run in parallel. The taste pore is the opening of the bud. It contains cilia of taste receptors cells: papilla only last a few weeks and are constantly regenerated.
