Lecture26: Meninges, CSF formation

Question 1

What is the outer-most meninge?

Answer 1

Dura matter

Question 2

What are the blood filled cavities enclosed by dura matter called?

Answer 2

Dural sinuses

Question 3

What are both dura matter layers?

Answer 3

Periosteal and meningeal

Question 4

Which dura matter layer lies closer to the brain?

Answer 4

Meningeal

Question 5

Which layer forms the dural folds?

Answer 5

Meningeal layer

Question 6

r

Question 7

What is the epidural space?

Answer 7

Between the skull and dura matter

Question 8

Where is the subdural space?

Answer 8

Between the arachnoid and dura matter

Question 9

Where is the subarachnoid space?

Answer 9

Between arachnoid and pia mater

Question 10

What is the function of the subarachnoid space?

Answer 10

Houses CSF

Question 11

What causes the web-like appearance of the subarachnoid space?

Answer 11

Trabechulae

Question 12

What does the subarachnoid space enlarge to form in certain spaces?

Answer 12

Cisterna

Question 13

What is the largest Cistern?

Answer 13

Cisterna Magna

Question 14

Where does the Cisterna Magna ly?

Answer 14

In between the medulla and cerebellum

Question 15

What are involved in the reabsorption of CSF into venous blood?

Answer 15

Arachnoid villi

Question 16

Explain Papilloedema

Answer 16

The enlargement of the retinal veins due to increased pressure

Question 17

What produces CSF?

Answer 17

Choroid Plexus

Question 18

Where is the choroid plexus found?

Answer 18

Third and Fourth ventricles

Question 19

What lines the ventricles of the choroid plexus?

Answer 19

Ependymal cells

Question 20

The CSF goes to the subarachnoid space via?

Answer 20

The lateral and median aperatures

Question 21

What reabsorbs the CSF?

Answer 21

Arachnoid villi

Question 22

What is hydrocephalus?

Answer 22

The abnormal accumulation of CSF Fluid