<pathology> The largest and most numerous neuroglial cells found in the brain and spinal cord. Astrocytes are irregularly shaped with many 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.

(18 Nov 2007)

astrobiology, astroblast, astroblastoma, astrocele < Prev | Next > astrocytes, astrocytoma, astrocytosis

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