Meninges overview

Question 1

What are meninges?

Answer 1

CT membranes that cover the brain and spinal cord

Separates the brain and spinal cord from the skull and vertebral column

Question 2

Depending on where meninges are located, will either be called

Answer 2

cranial or spinal meninges

Question 3

Remember, both cranial and spinal meninges are

Answer 3

continuous with each other and they consist of the same three meninges

Question 4

Cranial dura mater consists of 2 layers:

Answer 4

An outer periosteal layer and an inner meningeal layer

Question 5

The outer periosteal layer of the cranial dura mater is the layer that is in close contact with the

Answer 5

internal surface of the cranium

Question 6

The meningeal layer of the cranial dura mater will be the innermost layer, and is in close contact with the

Answer 6

arachnoid mater.

Question 7

How does spinal dura mater differ from the cranial dura mater?

Answer 7

– only consists of one layer – the meningeal layer

Question 8

Pia mater is closely adherent to the

Answer 8

external surface of the skull

Question 9

Due to their embryological and cellular similarities, the pia and arachnoid mater are collectively referred to as the

Answer 9

leptomeninges

Question 10

Functions of the meninges

Answer 10

Provide a supportive framework for the cerebral and cranial vasculature

Acting with cerebrospinal fluid to protect the CNS from mechanical damage

Question 11