Nervous System II Notes 1

These membranes protect the brain and spinal cord.

Answer explanation

meninges

What layer of th meninges is closest to the brain and what is its function?

Answer explanation

pia mater; nourishes the brain

What are the three layers of the meninges?

Answer explanation

Dura mater, arachnoid mater, and pia mater

What layer of the meninges is in the middle? Are there blood vessels in this layer?

Answer explanation

arachnoid mater, no blood vessels

Which layer of the meninges is the most superficial?

Answer explanation

dura mater

What is substance is found and produced in the ventricles?

Answer explanation

CSF (cerebrospinal fluid)

How many ventricles are in the brain? Name them.

Answer explanation

4; 2 lateral ventricles, the third ventricle, and the fourth ventricle

What connects the third ventricle to the fourth ventricle?

Answer explanation

cerebral aqueduct

What connects the third ventricle to the lateral ventricle?

Answer explanation

interventricular foramina

CSF is secreted from what structure in the ventricles?

Answer explanation

choroid plexus