astrocytes


astrocytes

Star-shaped connective tissue cells of the nervous system that link nerve cells to blood vessels and, by wrapping round brain capillaries, help to form the BLOOD-BRAIN BARRIER. Neurological connective tissue (neuroglial) cells.

astrocytes 

Neuroglial cells with many processes found in the central nervous system, the retina (especially the ganglion cells, the inner plexiform layers and the nerve fibre layer) and the optic nerve. Their function is believed to be nutritional and structural and to be involved in the clearance of neurotransmitters from within the synaptic cleft. Syn. Cajal's cells.