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Flashcards in Spinal cord 4th exam Deck (75)
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1

Cervical part

Superior-most region of the spinal cord and is continuous with the medulla oblongata

2

What does the cervical part contain

motor neurons whose axons contribute to the cervical spinal nerves

3

Thoracic part

Lies inferior to the cervical region

4

What does the thoracic part contain

motor neurons for the thoracic spinal nerves

5

Lumbar part

shorter segment of the spinal cord that contains the motor neurons for the lumbar spinal nerves

6

Sacral part

Lies inferior to the lumbar region and contains the motor neurons for the sacral spinal nerves

7

Coccygeal part

most inferior tip of the spinal cord and one pair of spinal nerves arises from this region

8

conus medullaris

the tapering inferior end of the spinal cord

9

Where does the conus medullaris mark the official end of the spinal cord

first lumbar vertebra

10

Cauda equina

inferior to the conus medullaris, a group of axons

11

Filum terminale

within the cauda equina, a thin strand of pia mater that helps anchor the conus medullaris to the coccyx.

12

Where is the spinal cord thickest

around the upper and lower limbs

13

Cervical enlargement

located in the inferior cervical region of the spinal cord, contains the neurons that innervate the upper limbs

14

lumbosacral enlargement

extends through the mid-lumbar region of the spinal cord and innervates the lower limbs

15

How many pairs of spinal nerves is the spinal cord associated with

31

16

how many cervical nerves are there

8

17

how many thoracic nerves are there

12

18

how many lumbar nerves are there

5

19

how many sacral nerves are there

5

20

how many coccygeal nerves are there

1

21

Structures and spaces that encircle the spinal cord, from outermost to innermost

vertebra, epidural space, dura mater, subdural space, arachnoid mater, subarachnoid space, pia mater

22

where does the epidural space lie and what does it house

between the dura mater and the inner walls of the vertebra, and houses loose connective tissue, blood vessels, and adipose connective tissue

23

Arachnoid

Deep to the dura mater and subdural space

24

lumbar puncture

clinical procedure for obtaining CSF

25

Where does the needle need to enter for a lumbar puncture.

subarachnoid space

26

Where is a lumbar puncture done

between L3 and L4 or L4 and L5

27

Pia mater

deep to the subarachnoid space, is a delicate, innermost meningeal layer composed of elastic and collagen fibers

28

Where is the white matter of the spinal cord and what does it do

peripheral, provides a means of neural communication to and from the brain

29

Where is the gray matter of the spinal cord and what does it do

central, serves as a center for spinal reflexes

30

What is the white matter of the spinal cord composed of

myelinated axons