Question

What structure is highly vascular and closely adheres to the surface of the brain?

Answer 1

Pia mater is the structure that is highly vascular and closely adheres to the surface of the brain. It is the innermost layer of the meninges and attaches directly to the brain and spinal cord. It protects the central nervous system by containing the cerebrospinal fluid, which cushions the brain and spine. 

Answer 2

Pia mater

Pia mater is a highly vascular tissue that cleaves firmly to the surface of the brain and spinal cord. Pia mater protects the central nervous system by nourishing the brain and allowing blood vessels to pass through it. The inflammation of the pia mater can lead to meningitis