PSB 3340 Gustation & Olfaction
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16 Terms
chemicals/molecules in saliva
What is the stimulus for gustation?
bitterness, sourness, sweetness, umami, saltiness
What are the 5 basic tastes?
olfactory, gustatory
Flavor results from combination of _________ and ________ info
10,000, 20-50
humans have ______ taste buds, each with __ to __ receptor cells
fungiform, foliate, circumvallate
3 kids of papillae that differ in appearance and location
bitter, sweet, umami
Which tastants are chemotropic and use GPCR pathways?
sour, salt
Which tastants are ionotropic?
positive
sour taste cells allows _____ ions to enter taste receptors; H+, K+
Na+
salt allows ____ ions to enter taste receptors
monosodium glutamate (MSG)
one of the receptors involved in the umami taste responds to glutamate and ___________ ___________
Ca2+
the influx of ____ ions allows for transmitter release in a taste receptor
gustatory pathway
describe the pathway of the gustatory system
olfactory epithelium
olfactory receptor cells are found within the ________ ________
bipolar
olfactory receptors are ______ neurons
olfactory pathway
describe the olfactory pathway
olfactory anatomy
describe olfactory anatomy
Note 
Flashcards (39)