Pia mater

The video tutorial explains the three brain membranes, known as meninges: dura mater, arachnoid mater, and pia mater. It details their protective roles for the CNS and their structural relationships. The pia mater's interaction with the brain and spinal cord is highlighted, including its impermeability to liquids and its role in cerebrospinal fluid circulation. The tutorial also covers glial cells, particularly astrocytes, and their functions in the CNS. Finally, it discusses meningitis, an inflammation of the meninges, its causes, symptoms, and potential severity.

How does the structure of the arachnoid mater relate to its function?

What are the potential consequences of untreated bacterial meningitis?

Explain the difference between bacterial and viral meningitis.