Final Review (test 1) Flashcards
1
Q
cross adaptation
A
reduction in detection of odorant following exposure to another (probably share 1 or more ORs for transduction)
2
Q
hyposmia
A
reduced smell detection
3
Q
parosmia
A
distortion in odor quality
4
Q
peripheral neuropathy symptoms
A
- numbness
- stabbing pain
- burning pain
- sensitivity to touch
- coordination difficulties
- muscle weakness
- bladder / bowel problems
5
Q
labeled line coding
A
each fiber types codes a specific touch sensation
6
Q
cross fiber coding
A
different qualities of a sensory modality are distinguished by a pattern of nerve discharges across a large population of fibers
7
Q
______ receives pain info
A
substantia gelatinosa (in dorsal horn)
8
Q
ACC
A
anterior cingulate cortex
pain processing
9
Q
Pacinian capsule
A
- mechanoreceptor
- fast adapting
- changes in skin shape
- high-frequency vibration
- fine texture perception
- located in dermis
10
Q
Ruffini capsule
A
- mechanoreceptor
- Slow adapting
- skin stretch causing an AP in afferent nerve fiber
- transmit constant pressure
- dermis and deeper tissue
sit parallel to the skin surface
11
Q
Meisner capsule
A
- mechanoreceptor
- Fast adapting
- transmit low-frequency vibration
- closest to the skin surface
12
Q
Merkel cell
A
- mechanoreceptor
- slow adapting
- Merkel cell neurite complex lie in fingerprint ridges
- superficial
- sustained pressure
13
Q
temp info travels via what 2 fibers
A
- C fibers
- A delta fibers
(little to no myelination, therefore, travels slowly)
14
Q
classical psychophysics is pioneered by …
A
Gustav Fechner
15
Q
why represent threshold with the mathematical model?
A
- use graphs
- relate to the average person
- help with marketing
