SMELL + TASTE Flashcards
1
Q
WHAT HAS LOWEST THRESHOLD OF TASTE?
A
bitter - highest sensitivity
2
Q
WHY ARE OLFACTORY NERVE CELLS DIFFERENT THAN MOST?
A
have ability to reproduce
3
Q
WHAT NEEDS TO OCCUR IN ORDER TO INITIATE AN AP REGARDING OLFACTION?
A
molecules of the vapour must dissolve in the mucous that covers the nasal epithelium
4
Q
WHERE ARE TASTE BUDS LOCATED?
A
within papillae of tongue
5
Q
WHERE ARE GUSTATORY CELLS LOCATED?
A
within taste buds
6
Q
WHERE DO NERVE IMPULSES FOR OLFACTION PASS TO?
A
2 olfactory nerves -> olfactory bulbs -> olfactory tract -> primary olfactory area in temporal lobe
7
Q
WHAT TYPE OF CELLS ARE OLFACTORY RECEPTOR CELLS?
A
bipolar
8
Q
WHAT DO BASAL STEM CELLS PRODUCE?
A
new olfactory receptors
9
Q
FOUR TYPES OF PAPILLAE
A
vallate, fungiform, foliate + filiform
