CNS 7: Somatic Senses Flashcards
what is proprioception
what is nociception
what type of cell are somatosensory receptor cells
afferent fibers carry signals from where to where
sensory info below the chin has cell bodies where?
where do head receptors have theircell bodies?
where in the neuron do they tranduce touch, pressure
what do free nerve endings deetect
what do merkel receptors detect
what are encapsulated receptors
what do merkel disks detect
are merkel disks tonic or phasic? what do they signal?
are mechanoreceptors phasic or tonic?
where are meissner corpuscles found
what type of cell are meissner corpuscles? what do they detect?
what do pacinian corpuscles detect? are they phasic or tonic?
where are receptors packed the most densely?
what is the test of two point discrimination?
what type of ending are thermoreceptors?
when do cold receptors respond?
where do warm receptors respond?
what type of cell are warm and cold receps?
when are pain receps activated?
what is paradoxical cold and why does it occur?
why is temperature not precisely localized?
what do nociceptors respond to?
what are small somatosensory afferent fibers?
what do c and adelta fibers come from?
free nerve endings
what is the difference between C and Adelta fibers?
what do small fibers respond to?
what are the large fibers? which receptor do they come from?
how fast do large fibers conduct?
what is the path of large fibers
what is the oathway of small fibers
what are large fibers good for? how does the info have to travel?
what are small fibers good for? why doesn’t it need to directly go to the brain?
how do spinal cord signals travl?
what does it mean that the primary somatosensory cortex is somatotopic
where is S1
what is somatosensory lateral inhibition
what are TRP channels?
what is congenital anagesia
what is fast pain? what fibers carry it?
what is slow pain? what fibers carry it?
why do we need two pains
what areas of the CNS does nociceptive signals evoke
how can you block nocicpetion? why would you need this?
what is referred pain?
ureter pain is often felt:
heart pain is often felt:
liver and gallbaldder pain is often felt:
how can AB fibers gate pain
how does acetylsalicylic acid work
how do opioids work
