PSYC210 CERTIFICATION EVALUATION
TEST PAPER FULL SOLUTION QUESTIONS
AND ANSWERS PACK
●● What is the neural plate?
Answer: Thickening of the ectoderm; eventually folds in on itself,
forming the neural groove.
Begins to form around the 22 day mark.
●● What is the neural crest?
Answer: The neural crest is the tip of the neural plate.
●● What structure within the CNS can the neural tube turn into? When a
defect occurs, what happens to neural tube development?
Answer: Within the CNS, turns into the Brain and Spinal Cord.
Birth defects can occur which impact functioning.
(i.e, the child's brain will not function properly, may experience
intellectual or physical disability.
Important functions will not occur.
, ●● What is the function of the apical radial glia? What happens when
there is a defect?
Answer: Bipolar progenitor cells that produce all neurons in the cortex.
- divides symmetrically to make more radial glia (asymmetrical division
to make intermediate progenitors, or future neurons)
Defects promote abnormal neuron production, migration defects,
abnormalities in brain structure.
●● What are migration neurons?
Answer: Migration neurons are long processes that stretch throughout
the brain allowing for newly born neurons to migrate along the fibers.
●● What is the growth cone function?
Answer: Grows from cell body to make axon
●● Chemoattraction?
Answer: Attraction to final target
●● Chemorepulsion?
Answer: Repelling from final target
TEST PAPER FULL SOLUTION QUESTIONS
AND ANSWERS PACK
●● What is the neural plate?
Answer: Thickening of the ectoderm; eventually folds in on itself,
forming the neural groove.
Begins to form around the 22 day mark.
●● What is the neural crest?
Answer: The neural crest is the tip of the neural plate.
●● What structure within the CNS can the neural tube turn into? When a
defect occurs, what happens to neural tube development?
Answer: Within the CNS, turns into the Brain and Spinal Cord.
Birth defects can occur which impact functioning.
(i.e, the child's brain will not function properly, may experience
intellectual or physical disability.
Important functions will not occur.
, ●● What is the function of the apical radial glia? What happens when
there is a defect?
Answer: Bipolar progenitor cells that produce all neurons in the cortex.
- divides symmetrically to make more radial glia (asymmetrical division
to make intermediate progenitors, or future neurons)
Defects promote abnormal neuron production, migration defects,
abnormalities in brain structure.
●● What are migration neurons?
Answer: Migration neurons are long processes that stretch throughout
the brain allowing for newly born neurons to migrate along the fibers.
●● What is the growth cone function?
Answer: Grows from cell body to make axon
●● Chemoattraction?
Answer: Attraction to final target
●● Chemorepulsion?
Answer: Repelling from final target
