Sensory Systems: Smell and Taste Flashcards
Odor has little _____.
biological correlate
The most consistent distinction of odor is between _____ and _____.
pleasant
unpleasant
The main olfactory system detects _____.
volatile chemicals
The accessory olfactory system detects _____.
fluid phase chemicals (pheromones)
The vomeronasal organ regulates _____, _____, or _____ behavior.
sexual
parental
agressive
ORN
olactory receptor neuron
Bowman’s glands secrete _____.
mucus
Mucus protects _____ and acts as a _____.
ORNs
solvent
ORNs have to be replaces every _____.
10 mins
The _____ contains stem cells that regenerate olfactory neurons throughout life.
olfactory epithelium
ORNs show _____ patterns of expression.
spatially distinct
ORNs project to the _____.
glomeruli in olfactory bulb
Glomeruli are selective for _____.
specific odor
Axons in the glomeruli converge on the dendrites of _____.
mitral cells
_____ and _____ modulate the activity of mitral cells.
Granule cells (lateral inhibition) tufted cells
The olfactory tract’s main target is the _____.
pyriform cortex
The pyriform cortex projects to higher areas including the _____ and _____.
orbitofrontal cortex
amygdala
Anosmia
inability to detect one or more odors
Olfaction, taste and trigeminal recetptors contribute to _____.
flavor
Olfaction contributes to flavor during _____.
exhalation
Taste buds reside in the _____ and _____.
tongue
larynx
Axons from taste buds run in cranial nerves _____, _____, and _____.
VII, IX, X
Taste buds sit in trenches around _____.
papillae
3 types of papillae:
fungiform
foliate
circumvallate
5 categories of taste
bitter sour sweet umami (MSG) salty
Each quality of taste has its own _____.
receptor
