Question: what are the four parts of the central nervous system?
Answer: 1.1 White and gray matter.
1.2 Spinal cord. 1.2.1 Cranial nerves.
1.3 Brain. 1.3.1 Brainstem. 1.3.2 Cerebellum. 1.3.3 Diencephalon. 1.3.4 Cerebrum.
1.4 Difference from the peripheral nervous system.