Flashcards in Central Somatosensory Pathways Deck (18)
what are in dorsal columns of spinal cord?
afferent sensory info from periphery
Where is upper limb located in dorsal columns versis lower limbs?
lower limbs are more medial
upper limb more lateral
3 nerves to get from touch to brain, where does it cross over/decussation?
what other info besides somatosensory during touch?
What is S1 and S2 mean in neuro?
primary somatic sensory cortex
Secondary somatic sensory cortex
how many body maps in S1 and S2
S1 - 4
S2 - 2
somatosensory cortex distribution even?
Nope, uneven distribution in form of humunculus
gracile nucleus has what tracts?
Cuneate nucleus has what tracts?
where does touch go after somatosensory cortex?
hippocampus and amygdala for further processing
patterns of recognition within sensory cortices example?
rat whiskers have a barrel appearance
what happens to somatosensory cortex after finger amputation
the finger that was amputated zone is taken over by adjacent regions
somatosensory cortex after repetative behavioural task?
expanded regions in the somatosensory cortex for those stimulated areas
Can you get CNS plasticity with erroneous peripheral nerve regen?
Phantom limbs are what?
after amputation, the patient can still feel the missing limb as though it were a part of them
what is the largest dural venous sinus?
superior sagittal sinus
falx and tentorium made of what?