lecture 7/8 Flashcards

1
Q

A fibers

A

myelinated
sharp first pain
mech / therm stimulated

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2
Q

C fibers

A

unmyelinated
poorly localized
mech/ther/chemical

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3
Q

where do A delta and C fibres synapse

A

posterior horn

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4
Q

where is first site of pain modulation

A

posterior horn

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5
Q

nociceptor specific neurons receive input from ____ and ____ they are specific for ____

A

C
A
pain

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6
Q

wide dynamic range neurons receive input from __ and __ and ___

A

AB fibers, C and A

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7
Q

interneurons receive __ input and play a role in ___

A

diverse

pain modulation

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8
Q

WDR can fire __ in ___ fashion

A

AP

graded

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9
Q

WDR and dependent on __ singling

A

C

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10
Q

T/F WDR can wind up and lead to sensitization

A

true

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11
Q

the amplification system that responds to __ fibres

A

wind up

C

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12
Q

wind up is a __ in threshold and ___ in sensitivity

A

reduction

increase

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13
Q

wind up priority ___

A

saliency

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14
Q

anterolateral system compromises fibres of ____ and ___ from SC to ___ and ___

A

pain / temp

brainstem / thalamus

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15
Q

tract that compromises only the fibres projecting from SC to thalamus

A

spinothalamic

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16
Q

medial system

A

affective motivational component
ouch
suffering

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17
Q

lateral system

A

discriminative localized

pain in left toe

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18
Q

medial system area of brain

A

anterior cingulate cortex

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19
Q

lateral system area of brain

A

primary somatosensory

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20
Q

chronic pain

A

chronic: inflammatory pain
neuropathic
idiopathic

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21
Q

example chronic inflatmmory pain

A

arthritis

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22
Q

example chronic neuropathic pain

A

postherpetic neuralgia

23
Q

example idiopathic pain

A

fibromyalgia

24
Q

maladaptive mechanisms

A

peripheral

central

25
peripheral maladaptive mechanisms
sensitazation over expression of receptors
26
central maladaptive mechanisms
wind up, changes in neurotransmitter receprots | disinhibition
27
central sensitization types
para dys hyper allodynia
28
parethisia / dysesthesias
increased spontaneous activity
29
hyperalgesia
reduced threshold for pain
30
allodynia
non noxious stimuli interpreted as painful
31
neuropathic pain symptoms
burning shooting electrical
32
nociceptive pain
squeeze throbbing aching
33
__ and __ fibres influence gut mobility
sympathetic and parasymp.
34
sensory information from the gut comes from what two sources
``` parsympatethic fibers (physiological - full) sympathies fibers (pain) ```
35
T/F referred pain can be from visceral nerve to somatic area
true
36
T/F referred pain can be from somatic nerve to somatic area
T
37
what innervates diaphragm
phrenic
38
cortical areas of limbic system
cingulate gyrus parahippcampal uncut
39
subcortical structures of limbic system
amygdala | hippocampus
40
hippocampus respsonsibel for
memory learning viceral / endocrine function emotional behaviour
41
types of memory
declarative / explcit | non declarative / implicit
42
types of declarative / explicit memory
episodic (events) | semantic (factors
43
Decartlive / explicit memories what brain area
hippocampus | cortical
44
types of non declarative implicit memories
skills habits emotioanl memory
45
brain for non declarative implicit memory
basal ganglia cerebllum Amy cortical areas
46
Case of HM
bi lateral hippocampus lesion loss of recent memory intelligence not affected
47
____ memory system for delclartive memory
medial temporal lobe
48
basic papez circuit
cingulate cortex hippocampus mamm body thalamaus
49
Amygala
emotional memories fear reward motivation what important
50
Case of Sm
bilateral Amy lesion | absesne sense of fear
51
emotional attention
reflective system (involuntary / automated)
52
Dopamine associated with wanting or liking
wanting
53
addiction activation of ___
dopamine neurons from VTA