1) Spinal Cord Anatomy - meninges

Question 1

What are the three layers of protection of the spinal cord?

Answer 1

1) bones of skull and vertebrae
2) meninges
3) epidural space containing cerebrospinal fluid

Question 2

What are the spinal meninges?

Answer 2

3 protective, connective tissues covers that encircle the spinal cord and brain

Question 3

T/F

All 3 meninges cover the spinal nerves up to the point where they exit the spinal column through the vertebral foramina

Answer 3

True

Question 4

Where do the 3 meninges exist the spinal column?

Answer 4

intervertebral foramina

Question 5

List the 3 meninges, superficial to deep.

Answer 5

1) dura matter
2) arachnoid matter
3) pia mater

Question 6

What is the epidural space? Where is it located?

Answer 6

it is a space between the dura matter and the wall of the vertebral canal that contains a cushion of fat and connective tissue.

Question 7

T/F

The epidural space contains cerebrospinal fluid

Answer 7

true

Question 8

What layer of meninges is considered to be the “tough mother”?

Answer 8

dura

Question 9

What layer of meninges is considered to be “spider-like”?

Answer 9

arachnoid

Question 10

What layer of meninges is considered to be “delicate”?

Answer 10

pia

Question 11

What meninx consists of a thick, strong layer of dense irregular connective tissue?

Answer 11

dura

Question 12

What meninx consists of a thin, avascular covering of cells and thin, loosely arranged collagen and elastic fibers?

Answer 12

arachnoid

Question 13

What meninx consists of thin, squamous to cuboidal cells within interlacing bundles of collagen fibers and some fine elastic fibers?

Answer 13

pia

Question 14

What meninx forms a sac from the level of the foramen magnum in the occipital bone tot he S2 vertebrae?

Answer 14

dura

Question 15

What meninx is continuous with hte epineurium (outercovering of spinal and cranial nerves)?

Answer 15

dura

Question 16

What is the subdural space?

Answer 16

a thin space between the dura matter and the arachnoid matter that contains interstitial fluid

Question 17

T/F

The subdural space contains cerebrospinal fluid

Answer 17

False - it contains interstitial fluid. The epidural space contains cerebrospinal fluid

Question 18

What meninx is a thin transparent connective tissue layer that adheres to the surface of the spinal cord and brain?

Answer 18

pia

Question 19

What meninx contians many blood vessels that supply oxygen adn nutrients to the spinal cord?

Answer 19

pia

Question 20

What meninx contains denticulate ligaments? What are the functions of denticulate ligaments?

Answer 20

pia

They are triangular-shaped membranous extensions of pia matter that suspend the spinal cord in the middle of its dural sheath.

They function to protect the spinal cord against sudden displacement/shock

Question 21

What is the subarachnoid space?

Answer 21

the space between the arachnoid matter and pia matter. It contains shock-absorbing cerebrospinal fluid

Question 22

Which of the following contain cerebrospinal fluid?

a) denticulate ligaments
b) epidural space
c) subdural space
e) subarachnoid space

Answer 22

epidural space and subarachnoid space