Ronald A. Bergman, Ph.D., Adel K. Afifi, M.D., Paul M. Heidger,
Peer Review Status: Externally Peer Reviewed
Human, Cajal's gold sublimate method, 162 x.
Astrocytes: Stellate cells. Processes fewer, straighter, and much longer than those of protoplasmic astrocytes (see Plate 128). Note the relationship to blood vessels. Astrocyte processes with end feet are applied to the walls of blood vessels forming a continuous glial membrane surrounding blood vessels and capillaries. This important component of the so-called blood-brain barrier modifies the diffusion of substances from the blood to the extracellular fluid.
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