Question

bio-201 topic 5: neuronal communication and the brain
practice it
what is the meninges role in protecting the brain and spinal cord?
to regulate the flow of cerebrospinal fluid in the brain and spinal cord
to act as a cushion, a barrier, and a source of nutrients and oxygen
to produce and secrete enzymes that break down toxins in the brain and spinal cord
to insulate the brain and spinal cord from external radiation
to provide structural support to the brain and spinal cord

Explanation:

The meninges are three layers of membranes that cover and protect the brain and spinal cord. They act as a cushion against physical impact, a barrier to pathogens, and help in the circulation and regulation of cerebro - spinal fluid which provides nutrients and oxygen.

Answer:

To act as a cushion, a barrier, and a source of nutrients and oxygen