Glossary of Medical Terms

Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine

ASTROGLIA CELL

The largest and most numerous neuroglial cells found in the brain and spinal cord. Astrocytes are irregularly shaped with much long processes, including those which form the blood-brain barrier. They regulate the extracellular ionic and chemical environment, and reactive astrocytes (along with microglia) respond to injury. Astrocytes have high-affinity transmitter uptake systems, voltage-dependent and transmitter-gated ion channels. See: oligodendrocytes.
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