Answer:
D. the central nervous system and the peripheral nervous system
Step-by-step explanation:
- The nervous system is made up of the central nervous system and the peripheral nervous system.
- The central nervous system, in turn, is made of the brain which controls all the body activities and the spinal cord.
- The peripheral nervous system, on the other hand, contains the cranial and spinal nerves and connects the central nervous system to the rest of the body.
- Electrical impulses are carried from the sense organs such as the skin by the nerves to the brain which then interprets the stimulus and sends a response to the organs such as muscles and glands.