Grey Substance (Noun)
Meaning
Greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons.
Classification
Nouns denoting body parts.
Examples
- The cerebral cortex is formed from a grey substance that lines the surface of the brain hemispheres.
- In the brain, grey substance consists of neurons and their supporting cells, known as glial cells.
- Unmyelinated neurons in the grey substance of the cerebral cortex allow for faster communication between cells.
- Grey substance forms a layer on the surface of the cerebrum, cerebellum, and other brain regions, playing a key role in processing sensory information.
- The cell bodies of neurons are found within the grey substance of the brain, which contrasts with the white matter that contains myelinated axons.