Dorsal column (II) Flashcards
1
Q
sensory info/motor information
A
touch and proprioception
ipsilateral
2
Q
ascending or descending
A
ascending
3
Q
1st order neuron cell body location (where does information being)
A
touch receptors on skin that enter through the dorsal horn
synapse #1
4
Q
2nd neuron cell body location
A
medulla
crossover happens here
synapse #2
5
Q
3rd neuron cell body location
A
contralateral thalamus
synapse #3
6
Q
4th order neuron cell body location
A
S1
7
Q
5th order neuron cell body location
A
none
8
Q
decussation point
A
axon leaving the medulla in neuron 2
9
Q
termination site
A
somatosensory cortex (S1) in the postcentral gyrus of the parietal lobe
