glial limiting membrane
gli·al lim·it·ing mem·brane
a dense, resilient membrane forming the true capsule of the brain and spinal cord, composed of the processes of astrocytes (macroglia cells) and covered throughout by the pia mater, which firmly adheres to it; the two membranes are collectively called the pial-glial membrane.
Synonym(s): membrana limitans gliae
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