1. Schematic of the Meninges and Their Relationships to the Brain and Skull

Question 1

Identify 1 - 3

Answer 1

1. Inferior sagittal sinus
2. Falx cerebri
3. Inner and outer layers of dura mater

Question 2

Identify 4 - 5

Answer 2

4. Arachnoid granulations
5. Superior sagittal sinus

Question 3

Identify 6

Answer 3

6. Epidural space (a potential space)

Question 4

Identify 7 - 9

Answer 4

7. Arachnoid membrane
8. Subarachnoid space
9. Pia mater

Question 5

(1)____ adheres to every contour of the brain, while the delicate (2)____ spans these contours

Answer 5

(1) The pia mater
(2) arachnoid membrane

Question 6

The subarachnoid space is a site in which ____ is found, providing buoyancy and protection to the brain, and also a site in which the cerebral arteries and veins travel.

Answer 6

cerebrospinal fluid (CSF)

Question 7

The resultant subarachnoid space is a site in which cerebrospinal fluid (CSF) is found, providing buoyancy and protection to the brain, and also a site in which _____ travel.

Answer 7

the cerebral arteries and veins

Question 8

The dura mater is a tough protective membrane that adheres below to (1)_____, and above to (2)____, with a split into an inner and outer layer for (3)____

Answer 8

1. the arachnoid
2. the skull
3. the venous sinuses

Question 9

The dura mater is a tough protective membrane that adheres below to the arachnoid, and above to the skull, with a split into an inner and outer layer for the venous sinuses.

→ These sinuses contain the draining venous blood, which is channeled into the additional sinuses and subsequently into _____

Answer 9

the internal jugular vein.

Question 10

____ protrude through the inner layer of the dura to drain CSF into the venous sinuses via one-way valves.

Answer 10

Arachnoid granulations

Question 11

Arachnoid granulations protrude through the inner layer of the dura to drain ____ into the venous sinuses via one-way valves.

Answer 11

CSF

Question 12

Arachnoid granulations protrude through the inner layer of the dura to drain CSF into ____ via one-way valves.

Answer 12

the venous sinuses

Question 13

Why is the epidural space a potential space?

Answer 13

A skull fracture that tears a meningeal artery may result in a bleed into the epidural space

Question 14

Do venous sinuses have layers? (If, yes, list them)

Answer 14

an inner and outer layer for the venous sinuses