Meninges
Videos
In anatomy, the meninges are protective membranes that cover the brain and spinal cord. In mammals, three meninges have been clearly identified: the dura mater, the arachnoid mater, and the pia mater.
Image depicting meninges around the brain
Diagram of brain layers
Diagram of section of top of brain showing the meninges and subarachnoid space
Illustration by Antonio Pacchioni, Acta Eruditorum, 1703
Glia limitans
Videos
The glia limitans, or the glial limiting membrane, is a thin barrier of astrocyte foot processes associated with the parenchymal basal lamina surrounding the brain and spinal cord. It is the outermost
Copper/Zinc Superoxide Dismutase (Cu/Zn SOD), shown in orange, is an important factor in the brain's immune response. Here it is seen in close association with the glial fibrillary acidic protein (GFAP), an indicator of the presence of astrocytes, at the surface of the glial limitans