Quiz on Meninges and Related Structures

What are the three layers of connective tissue that surround the CNS?

• Epidural, Subdural, and Arachnoid

• Outer, Middle, and Inner

• Dura mater, Arachnoid, and Pia mater

• Cerebral, Spinal, and Peripheral

Which layer of the meninges is the most external?

• Leptomeninges

• Pia mater

• Arachnoid

• Dura mater

What is the function of the arachnoid granulations?

• Transfer of CSF to the venous system

• Formation of the blood-brain barrier

• Protection of the brain

• Support for the spinal cord

Where does the spinal dura mater end?

• At the level of the 2nd lumbar vertebra

• At the level of the 2nd sacral vertebra

• At the level of the 1st cervical vertebra

• At the level of the 3rd thoracic vertebra

Which artery supplies the dura mater of the posterior cranial fossa?

• Middle meningeal artery

• Anterior meningeal artery

• Posterior meningeal artery

• Cerebral artery

What is the subarachnoid space filled with?

• Nerve fibers

• Connective tissue

• Cerebrospinal fluid (CSF)

• Blood

What is the role of the pia mater?

• To form the blood-brain barrier

• To provide a protective layer

• To connect the brain to the spinal cord

• To supply blood to the CNS

What is the largest epidural space located?

• At the level of the 2nd lumbar vertebra

• At the level of the 1st cervical vertebra

• At the level of the 4th sacral vertebra

• At the level of the 3rd thoracic vertebra

Which structure partially separates the cerebellar hemispheres?

• Falx cerebelli

• Tentorium cerebelli

• Falx cerebri

• Diaphragma sellae

What is the function of the filum terminale?

• To form the blood-brain barrier

• To supply blood to the spinal cord

• To protect the brain

• To anchor the spinal cord