Sensory Systems: Smell and Taste Flashcards Preview

Integrative Neuroscience > Sensory Systems: Smell and Taste > Flashcards

Flashcards in Sensory Systems: Smell and Taste Deck (26):
1

Odor has little _____.

biological correlate

2

The most consistent distinction of odor is between _____ and _____.

pleasant
unpleasant

3

The main olfactory system detects _____.

volatile chemicals

4

The accessory olfactory system detects _____.

fluid phase chemicals (pheromones)

5

The vomeronasal organ regulates _____, _____, or _____ behavior.

sexual
parental
agressive

6

ORN

olactory receptor neuron

7

Bowman's glands secrete _____.

mucus

8

Mucus protects _____ and acts as a _____.

ORNs
solvent

9

ORNs have to be replaces every _____.

10 mins

10

The _____ contains stem cells that regenerate olfactory neurons throughout life.

olfactory epithelium

11

ORNs show _____ patterns of expression.

spatially distinct

12

ORNs project to the _____.

glomeruli in olfactory bulb

13

Glomeruli are selective for _____.

specific odor

14

Axons in the glomeruli converge on the dendrites of _____.

mitral cells

15

_____ and _____ modulate the activity of mitral cells.

Granule cells (lateral inhibition)
tufted cells

16

The olfactory tract's main target is the _____.

pyriform cortex

17

The pyriform cortex projects to higher areas including the _____ and _____.

orbitofrontal cortex
amygdala

18

Anosmia

inability to detect one or more odors

19

Olfaction, taste and trigeminal recetptors contribute to _____.

flavor

20

Olfaction contributes to flavor during _____.

exhalation

21

Taste buds reside in the _____ and _____.

tongue
larynx

22

Axons from taste buds run in cranial nerves _____, _____, and _____.

VII, IX, X

23

Taste buds sit in trenches around _____.

papillae

24

3 types of papillae:

fungiform
foliate
circumvallate

25

5 categories of taste

bitter
sour
sweet
umami (MSG)
salty

26

Each quality of taste has its own _____.

receptor