Question
Biology Question on human reproduction
Central nervous system develops from embryonic
A
Ectoderm
B
Endoderm
C
Mesoderm
D
Both ectoderm and endoderm
Answer
Ectoderm
Explanation
Solution
Central nervous sytem consists of brain and spinal cord. The ectoderm generates the outer layer of the embryo, and it is formed from the embryo's epibalst. The ectoderm develops into the surface ectoderm, neural crest, and the neural tube. The neural tube of the ectoderm develops into brain and, spinal cord (central nervous system), posterior pituitary, motor neurons and retina.