Anatomy and Cell Biology 3319 Lecture Notes - Lecture 4: Epiglottis, Keratin, Entorhinal Cortex
6 Jul 2016
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Taste and smell fall under visceral sensory division. Special sense receptors are not nerve ending, they are distinct receptor cells known as chemoreceptors; detect chemicals and convery that signal to electrical action potential, and that info is sent to the brain via cranial nerves. Once its broken down, the chemicals activate chemoreceptors which will send a message to the brain for conscious perception of taste. Circumvallate; located between the posterior 3rd and anterior 2 3rds off the tongue; tend to be arranged in an inverted u shape dots) side of the tongue. The histo image, shows their structure which is dome shaped. Foliate pappilae; lateral aspect (closer to the back) Filiform papillae; cover most of the superior surface of the tongue (all the tiny. Fungiform papillae; tend to be scattered among filiform, but mostly at tips and. 3 have taste buds (mentioned in the slide) Blue dots on the side are taste buds.
