Which of the following correctly describes the nervous system?
The autonomic nervous system may be further divided into sympathetic and parasympathetic nervous systems.
The nervous system can be divided structurally into the central and peripheral nervous systems and functionally into the autonomic and somatic nervous systems.
The central nervous system consists of the brain and spinal cord while the peripheral nervous system consists of those nerves outside the brain and spinal cord.
The peripheral nerves include 12 pairs of cranial nerves and 31 pairs of spinal nerves.
All of the above