Overview of the Nervous System The nervous system is a complex network of specialized cells responsible for transmitting signals between different parts of the body. It regulates body functions, coordinates voluntary and involuntary actions, and processes sensory information. Functions of the Nervous System Divisions of the Nervous System The nervous system is broadly divided into two main parts: 1. Central Nervous System (CNS) 2. Peripheral Nervous System (PNS) Subdivisions of