glia
Học thuậtThân thiện
Definition
- Noun:
- Neuroglia: Glia is the non-neuronal, supportive tissue of the central nervous system. It surrounds and maintains the environment for neurons, providing structural support, insulation, and nutrients. Glial cells and neurons together compose the nervous tissue.
Usage
- Glia is an uncountable noun used in scientific and medical contexts to refer to the collective supportive cells of the nervous system.
- It is often discussed in contrast to neurons, which are the electrically active signaling cells.
Examples
- Noun:
- Research indicates that glia play a crucial role in brain development and function.
- The brain is composed of two main cell types: neurons and glia.
- Damage to the glia can impair neuronal communication.
Advanced Usage
- "Glial cells": This is the more common term for the individual cells that constitute glia. While "glia" refers to the tissue collectively, "glial cells" specifies the cellular components.
- Astrocytes and oligodendrocytes are types of glial cells.
Variants and Related Words
- Glial (adj): Of or relating to glia.
- Glial scarring can occur after a brain injury.
- Neuroglia (n): A synonym for glia, used interchangeably in medical terminology.
- Microglia (n): A specific type of glial cell that acts as a primary immune defense in the central nervous system.
- Macroglia (n): A category of glial cells including astrocytes and oligodendrocytes.
Synonyms
- Neuroglia: The supporting tissue of the nervous system.
- Glial tissue: Tissue consisting of glial cells.
Notes on Meaning
- Glia is distinct from neurons. Its primary functions are support and maintenance, not electrical signaling. However, modern science shows glia are active participants in neural communication and health.
- The term is almost exclusively used in biological, neurological, and medical contexts.
Noun
- sustentacular tissue that surrounds and supports neurons in the central nervous system; glial and neural cells together compose the tissue of the central nervous system