Glial Cells
Definition
Glial cells, also known as neuroglia, are non-neuronal cells in the central nervous system and peripheral nervous system that support and protect neurons.
Analogy
Think of glial cells like the pit crew for a race car. The race car (the neuron) gets all the attention because it's doing the exciting work, but without the pit crew (glial cells), it wouldn't be able to function properly. They provide necessary support, maintenance, insulation, and even help with communication.
Related terms
Astrocytes: These are star-shaped glial cells in the brain and spinal cord that help form blood-brain barriers and regulate tissue repair.
Microglia: These are a type of glial cell located throughout the brain and spinal cord that act as first responders to damaged neurons or pathogens.
Oligodendrocytes: These are a type of glial cell in the central nervous system that produce myelin sheath around neuronal axons which helps speed up electrical impulses.
"Glial Cells" appears in:
Study guides (1)
Resources
© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.