Definitions for neuroglianʊˈrɒg li ə, nyʊ-
This page provides all possible meanings and translations of the word neuroglia
Random House Webster's College Dictionary
neu•rog•li•anʊˈrɒg li ə, nyʊ-(n.)
a class of cells in the brain and spinal cord that form a supporting and insulating structure for the neurons.
Category: Pathology, Cell Biology, Anatomy
Origin of neuroglia:
1870–75; neuro - + LGk glía glue
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
the delicate connective tissue framework which supports the nervous matter and blood vessels of the brain and spinal cord
Glial cells, sometimes called neuroglia or simply glia, are non-neuronal cells that maintain homeostasis, form myelin, and provide support and protection for neurons in the brain, and for neurons in other parts of the nervous system such as in the autonomic nervous system. As the Greek name implies, glia are commonly known as the glue of the nervous system; however, this is not fully accurate. Neuroscience currently identifies four main functions of glial cells: ⁕To surround neurons and hold them in place, ⁕To supply nutrients and oxygen to neurons, ⁕To insulate one neuron from another, ⁕To destroy pathogens and remove dead neurons. For over a century, it was believed that they did not play any role in neurotransmission. That idea is now discredited; they do modulate neurotransmission, although the mechanisms are not yet well understood.
U.S. National Library of Medicine
The non-neuronal cells of the nervous system. They not only provide physical support, but also respond to injury, regulate the ionic and chemical composition of the extracellular milieu, participate in the BLOOD-BRAIN BARRIER and BLOOD-RETINAL BARRIER, form the myelin insulation of nervous pathways, guide neuronal migration during development, and exchange metabolites with neurons. Neuroglia have high-affinity transmitter uptake systems, voltage-dependent and transmitter-gated ion channels, and can release transmitters, but their role in signaling (as in many other functions) is unclear.
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