CNS 7: Somatic Senses

Question 1

what is proprioception

Question 2

what is nociception

Question 3

what type of cell are somatosensory receptor cells

Question 4

afferent fibers carry signals from where to where

Question 5

sensory info below the chin has cell bodies where?

Question 6

where do head receptors have theircell bodies?

Question 7

where in the neuron do they tranduce touch, pressure

Question 8

what do free nerve endings deetect

Question 9

what do merkel receptors detect

Question 10

what are encapsulated receptors

Question 11

what do merkel disks detect

Question 12

are merkel disks tonic or phasic? what do they signal?

Question 13

are mechanoreceptors phasic or tonic?

Question 14

where are meissner corpuscles found

Question 15

what type of cell are meissner corpuscles? what do they detect?

Question 16

what do pacinian corpuscles detect? are they phasic or tonic?

Question 17

where are receptors packed the most densely?

Question 18

what is the test of two point discrimination?

Question 19

what type of ending are thermoreceptors?

Question 20

when do cold receptors respond?

Question 21

where do warm receptors respond?

Question 22

what type of cell are warm and cold receps?

Question 23

when are pain receps activated?

Question 24

what is paradoxical cold and why does it occur?

Question 25

why is temperature not precisely localized?

Question 26

what do nociceptors respond to?

Question 27

what are small somatosensory afferent fibers?

Question 28

what do c and adelta fibers come from?

Answer 28

free nerve endings

Question 29

what is the difference between C and Adelta fibers?

Question 30

what do small fibers respond to?

Question 31

what are the large fibers? which receptor do they come from?

Question 32

how fast do large fibers conduct?

Question 33

what is the path of large fibers

Question 34

what is the oathway of small fibers

Question 35

what are large fibers good for? how does the info have to travel?

Question 36

what are small fibers good for? why doesn’t it need to directly go to the brain?

Question 37

how do spinal cord signals travl?

Question 38

what does it mean that the primary somatosensory cortex is somatotopic

Question 39

where is S1

Question 40

what is somatosensory lateral inhibition

Question 41

what are TRP channels?

Question 42

what is congenital anagesia

Question 43

what is fast pain? what fibers carry it?

Question 44

what is slow pain? what fibers carry it?

Question 45

why do we need two pains

Question 46

what areas of the CNS does nociceptive signals evoke

Question 47

how can you block nocicpetion? why would you need this?

Question 48

what is referred pain?

Question 49

ureter pain is often felt:

Question 50

heart pain is often felt:

Question 51

liver and gallbaldder pain is often felt:

Question 52

how can AB fibers gate pain

Question 53

how does acetylsalicylic acid work

Question 54

how do opioids work