S3: Dorsal Column/Leminiscal System Pathway

Question 1

dorsal root axons carrying epicritic from UPPER limb go to the

Answer 1

cuneate fasciulus (more laterally)

Question 2

dorsal root axons carrying epicritic from LOWER limb go to the

Answer 2

gracile fasciulus

Question 3

from the gracile and cuneate fascilus goes axons synapse in the

Answer 3

gracile and cuneate nuclei in the MEDULLA

Question 4

from the gracile and cuneate nuclei in the medulla

Answer 4

axons CROSS at the decussations in the MEDULLA

Question 5

after crossing the second order neuron ascend as the ____ to the thalamus

Answer 5

medial lemniscus pathway

Question 6

the fibers of the medial lemniscus pathway travel up the brainstem from the medulla to synapse at the ____ in the thalamus

Answer 6

VPL

Question 7

from the VPL, the third order nerons synapse in the

Answer 7

3. post central gyrus (s1, brodmanns 3,2,1)