_____ occurs when the neural tube fails to close and the spinal cord is not encased in the spinal column.
a. Spinal meningitis
b. Cerebral palsy
c. Spina bifida
d. Agenesis
Question 2
The brain first becomes apparent around four weeks after conception when the neural _____ folds to form the neural _____.
a. plate; tube
b. tube; cup
c. cup; spike
d. spike; tube