(5B) CNS Embryology

Question 1

serve as guidewires for the migration of neurons during development

Answer 1

radial glial cells

Question 2

arise from monocytes in circulation that invade the CNS

Answer 2

microglia

Question 3

all neurons found in the CNS arise from

Answer 3

neuroblasts

Question 4

alar plate is separated from the balal plate by the..

Answer 4

sulcus limitans

Question 5

in the adult brainstem what does the sulcus limitans seperate

Answer 5

motor nuclei (basal) from sensory nuclei (alar)

Question 6

during early growth and development, the spinal cord appears to migrate (rostral or caudally). Why?

Answer 6

rostral bc the spinal column grows faster than the cord

Question 7

at what vertebral level does the spinal cord end in an adult?

Answer 7

L1-2