Common Nervous System Terminology: Key Terms and Definitions
Learn the common terms used to describe the nervous system, including the brain, spinal cord, nerves, signals, and body responses.
Common Nervous System Terminology
The nervous system controls communication throughout the body. It helps the body sense information, process it, and respond. Learning common nervous system terms can make it easier to understand how the brain, spinal cord, and nerves work together.
These terms are often used in anatomy, health education, and discussions about sensation, movement, and thought.
Why Nervous System Terminology Matters
Nervous system terms help describe how the body communicates internally and reacts to the environment. They are useful for understanding sensation, movement, reflexes, and brain function.
Common Nervous System Terms
Brain
The organ that controls thought, memory, movement, emotions, and the senses.
Spinal Cord
The structure that carries messages between the brain and the rest of the body.
Nerve
A bundle of fibers that carries electrical signals.
Neuron
A nerve cell that sends and receives information.
Stimulus
A change inside or outside the body that triggers a response.
Reflex
A fast, automatic response to a stimulus.
Sensory Nerve
A nerve that carries information from the body to the brain or spinal cord.
Motor Nerve
A nerve that carries instructions from the brain or spinal cord to muscles or organs.
Central Nervous System
The part of the nervous system made up of the brain and spinal cord.
Peripheral Nervous System
The part of the nervous system made up of nerves outside the brain and spinal cord.
Common Prefixes and Suffixes
Medical terminology related to the nervous system often includes specific prefixes and suffixes.
Prefixes
- Neuro-: Relating to nerves or the nervous system
- Encephalo-: Relating to the brain
- Myelo-: Relating to the spinal cord or bone marrow
- Cerebro-: Relating to the brain
Suffixes
- -itis: Inflammation
- -pathy: Disease or disorder
- -logy: Study of
- -oma: Tumor
Why This Terminology Matters
Understanding common nervous system terminology helps explain how the body senses, thinks, and responds. These terms provide a strong foundation for learning about body communication and control.