Nervous System Overview

Front

The nervous system is the rapid communication and command system of the body.

Back

The nervous system coordinates actions and reactions by transmitting signals throughout the body.

Front

The nervous system sends out signals or commands to move, talk, cry, beat faster, and breathe deeper.

Back

It controls voluntary and involuntary actions.

Front

Some actions controlled by the nervous system are conscious, while others are unconscious.

Back

Examples include reflex actions and automatic functions like heartbeat.

Front

Diagram of the Human Nervous System

Back

This diagram illustrates the structure and components of the nervous system, including the brain, spinal cord, and nerves.

Front

Nervous system has three overlapping functions.

Back

Sensory input, integration, and motor output.

Front

Sensory input

Back

Information gathered by sensory receptors about internal and external changes.

Front

Integration

Back

Processing and interpretation of sensory input.

Front

Nervous system is divided into two principal parts.

Back

Central nervous system (CNS) and peripheral nervous system.

Front

Central nervous system (CNS) includes these parts.

Back

Brain and spinal cord of dorsal body cavity.

Front

Role of the CNS in sensory input.

Back

Interprets sensory input and dictates motor output.