Spinal Cord and Meninges

Question 1

___ and ___ comprise the central nervous system.

Answer 1

brain and spinal cord

Question 2

thin and transparent layer and coats spinal cord. innermost meningeal layer

Answer 2

pia mater

Question 3

space between bone/vertebra and dura mater

Answer 3

epidural space

Question 4

between dura mater and arachnoid mater; has nothing in it

Answer 4

subdural

Question 5

when blood collects between dural mater and arachnoid mater

Answer 5

subdural hematoma

Question 6

clear watery fluid, cerebraspinous fluid found here

Answer 6

subarachnoid space

Question 7

Identify the starred structure on the diagram

Answer 7

internal vertebral plexus

Question 8

Why is the internal vertebral venous plexus important clinically?

Answer 8

frequent site for metastasis of blood born cancers

Question 9

Identify the starred structure in the diagram

Answer 9

denticulate ligament

Question 10

How many set of spinal nerves come out of the vertebral column ?

Answer 10

31 pairs

Question 11

The spinal cord ends at ____

Answer 11

L1

Question 12

Identify the following starred structure on the diagram

Answer 12

conus medularis

Question 13

made of pia mater

Answer 13

filum terminale internus

Question 14

all three layers fused together

Answer 14

filum terminale externus

Question 15

these arteries come off the aorta

Answer 15

segmental spinal artery

Question 16

segmental arteries that reach the spinal cord and anastomose with the spinal artery are ___ and ____.

Answer 16

anterior and posterior medullary arteries

Question 17

segmental arteries that reach the spinal nerve roots are ____

Answer 17

radicular arteries

Question 18

segmental arteries that reach both the spinal nerve roots and the spinal cord are ____

Answer 18

radiculospinal arteries

Question 19

stabilizes spinal cord within center of subarachnoid space

Answer 19

denticulate ligament

Question 20

Identify the starred structure

Answer 20

anterior spinal artery

Question 21

Identify the starred structure

Answer 21

vertebral artery