Pain I

Question 1

nociception

Answer 1

sensory response to noxious stimulus

unconscious

Question 2

pain

Answer 2

perception of nociceptive (noxious) sensory information - sensory and emotional

Question 3

sensory-discrimination

Answer 3

perceptor of exteroceptive and enteroceptive noxious info and localization of site of stimulus

Question 4

extercoeptive

Answer 4

information coming from outside

Question 5

enteroceptive

Answer 5

information coming from within the body

Question 6

motivation-affective

Answer 6

emotion and sympathetic responses and associated behaviors

Question 7

what parts of the brain are associated with motivation-afferctive

Answer 7

frontal cortex, limbic system, brainstem area

Question 8

type of sensation associated with acute (fast) pain

Answer 8

sharp, prickling, cutting

Question 9

noceceptive pain

Answer 9

normal pain, transient localized, no tissue damage. warning/protective function

Question 10

inflammatory pain

Answer 10

acute and chronic
tissue damage
hypersensitivity
protective, promotes heading

Question 11

dysfunctional pain

Answer 11

no lesion found, disproportional to tissue damage (IBS)

Question 12

neuropathic pain

Answer 12

damage to nervous system
pathologic, maladaptive
disproportionate to intensity of nociceptor activation

Question 13

what is nociceptive pain caused by

Answer 13

activity in neural pathways in response to potentially tissue damgeing stimuli

Question 14

mixed pain

Answer 14

nociceptive and neuropathic components

Question 15

superifical somatic

Answer 15

close to surface

easy to localize

Question 16

somatic deep

Answer 16

more difficult to localize

Question 17

visceral pain

Answer 17

mediated by C fibers primarily
poorly localized
often radiates

Question 18

free nerve endings in body

Answer 18

spinal ganglia

Question 19

free nerve endings in face

Answer 19

trigeminal ganglia

Question 20

why is high threshold important

Answer 20

because you don’t want to feel every sensation as pain

Question 21

what are different pain stimuli

Answer 21

mechanical
thermal
chemical

Question 22

inflammatory soup

Answer 22

release of ATP, bradykinin, serotonin

Question 23

what happens after you have a tissue injury

Answer 23

release to inflammatory soup

Question 24

what do inflammatory soup do

Answer 24

activate free nerve endings of noiceptors

Question 25

what do nociceptors release

Answer 25

substance P

Question 26

what does substance P do

Answer 26

vasodilation, more leaky blood vessels
edema and inflammation
stimulate mast cells to release histamin and NGF

Question 27

silent nociceptors

Answer 27

do not respond to nociception initially, only signal in response to molecules secreted by other activated nociceptors

Question 28

function of silent nociceptors

Answer 28

expand receptive field for pain stimulus

Question 29

axon reflex

Answer 29

stimulation of sympathetic nervous system