This innermost meningeal layer that touches the brain

Last updated: 8/2/2022

This innermost meningeal layer that touches the brain permits nutrients, oxygen, and certain solutes to enter the brain, but there are tight junctions on the adjacent blood vessels which form the blood-brain barrier, so as to protect the brain from disease and harmful chemicals Arachnoid mater Pia mater Dura mater Astrocytes