Taste and Smell Flashcards
Gustation
Taste
Olfaction
Smell
What kind of receptor is taste and smell?
Chemoreceptors
What does taste and smell have to do to activate?
Must dissolve - aqueous solution
How many taste buds are found on the tongue?
10,000
Where are taste buds located?
In papillae of the tongue mucosa
What are the three types of papillae?
Filiform, fungiform, circumvallate
How many epithelial cells are in a taste bud?
25-100
What are the supporting cells in a taste bud?
Gustatory cells and basal cells
Sweet
Sugars, saccharin, alcohol, and some amino acids
Salt
Metal ions
Sour
Hydrogen ions
Bitter
Alkaloids
Umami
Elicited by the amino acid glutamate
Taste triggers what
Reflex involved in digestion
What percent is smell in taste?
80%
What receptors are found in the mouth?
Thermoreceptors, mechanoreceptors, and nociceptors
What does olfactory epithelium have?
Olfactory receptors, supporting cells, basal cells
What is olfactory receptors?
Bipolar sensory neurons
What is anosmias?
Loss of sense of smell
The organ of smell is what?
Olfactory epithelium that covers superior nasal concha
