Spinal Tracts Flashcards
Which spinal tract is responsible for pain and temperature?
spinothalamic
Name the ascending tracts.
spinothalamic dorsal column medial lemniscus
Name the descending tract.
corticospinal
Which spinal tract is responsible for motor?
corticospinal
Which spinal tract is responsible for fine touch, vibration and proprioception??
dorsal column
Where is the first synapse of the dorsal column?
medulla - cuneate (above waist) and gracillus (below waist) nuclei
Where does the dorsal column decussate?
medulla
Where is the second synapse of the dorsal column?
ventroposterolateral nucleus in thalamus
Where does the dorsal column end up?
post central gyrus - sensory cortex
Where is the first synapse of the spinothalamic tract?
at spinal cord - one or two levels above entrance
Where does the spinothalamic tract decussate?
at level of spinal entrance
Where is the second synapse of the spinothalamic tract?
VPN of thalamus
Where does the spinothalamic tract end up?
post central gyrus - parietal lobe
Why do you get contralateral symptoms with a spinothalamic lesion?
as it decussates at level of spinal entrance
Where does the corticospinal tract decussate?
medulla