Gross Structure

Question 1

What are the 3 meningeal layers?

Answer 1

1) Dura Mater
2) Arachnoid mater
3) Pia Mater

Question 2

What are the 3 functions of the meninges?

Answer 2

1) Protect brain and spinal cord from injury
2) Space for the flow of CSF
3) Framework for cerebral and cranial vasculature

Question 3

What are the 2 connective tissue sheets of dura mater?

Answer 3

1) Endosteal Layer (Lines the cranium)

2) Meningeal Layer

Question 4

What vein do the dural venous sinuses drain into?

Answer 4

Internal Jugular Veins

Question 5

What are the 3 dural reflections?

Answer 5

1) Falx Cerebri
2) Tentorium Cerebelli
3) Falx Cerebelli

Question 6

What does the Falx Cerebri do?

Answer 6

Separates the 2 cerebral hemispheres (Found in Longitudinal Fissure)

Question 7

Where is the tentorium cerebelli located?

Answer 7

Lies over posterior cranial fossa and cerebellum

Question 8

What does the Falx Cerebelli do?

Answer 8

Separates the 2 cerebellar hemispheres

Question 9

What is found in the subarachnoid space?

Answer 9

CSF and Arteries

Question 10

Describe the function of the BBB?

Answer 10

Prevents passage of some substances from circulation into nervous tissue, protecting the brain

Question 11

Which meningeal layer is avascular?

Answer 11

Arachnoid mater