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
