Introduction
The nervous system is responsible for controlling and coordinating all activities in the human body. It allows the body to respond to internal and external changes.

Structure of the Nervous System
1. Central Nervous System (CNS)
Includes the brain and spinal cord.
2. Peripheral Nervous System (PNS)
Connects the CNS to the rest of the body.
How the Nervous System Works
The nervous system uses electrical signals to transmit information between different parts of the body. Neurons carry these signals, allowing communication between cells.
Functions
- Controls movement
- Processes information
- Maintains coordination
Importance
The nervous system ensures that the body responds quickly and appropriately to various stimuli.
Conclusion
The nervous system plays a central role in maintaining coordination and communication within the body, making it essential for survival.
