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Flashcards in Spinal cord Deck (21):
0

IN horizontal view, what direction of the spinal cord tends to be largest?

transverse

1

What are the spinal cord enlargement locations and the name given to each?

c3-t1, the cervical enlargement; t9-t12, the lumbar (lumbosacral) enlargement

2

Where is the greatest transverse diameter of the spinal cord?

c6

3

IN which plane (or direction) will the diameter of the spin al decrease from c2-t1?

midsagittal or anterior-posterior

4

What spinal nerves originate from the lumbar (lumbosacral) enlargement?

L1-S3

5

What is a generic cord level of origin - vertebral level combination for the lumbar (lumbosacral) enlargement?

L1,L2 cords levels in T9 vertebrae; L3, L4 cord levels in T10 vertebra; L5,S1 cord levels in T11 vertebra; S2, S3 cord levels in T12 vertebra

6

What is the caudal end of the spinal cord called?>

conus medullaris

7

what spinal nerves originate from the conus medullaris?

typically S4, S5, and Co1

8

In which vertebral foramen will the conus medullaris typically be observed?

L1

9

What is the name given to the nerve roots below L1?

cauda equina

10

What is the location and name given to the area where ll meninges first converge at the caudal part of the vertebral column?

typically S2, the dural cul de sac

11

What is the continuation of pia below the conus medullaris called?

filum terminale internum

12

Neural tissue has been identified in what type of the filum terminale?

proximal part of the filum terminale interum

13

What is the fate of the neural tissue identified along the film terminale internum?

it joins peripheral nerve roots of spinal nerves as high as L3 and as low as S4

14

What does the neural tissue associated with the filum terminale externum appear to innervate?

lower limbs and the external anal sphincter

15

the last arterial vasa corona creates what feature on angiogram?

cruciate anastomosis

16

What is the name given to the condensation of meninges below S2?

filum terminale externum

17

What is the name given to the caudal attachment of the meninges?

coccygeal medullary vestige

18

What is the name given to the condition in which the conus medullaris is located below L1 and the filum terminale is thickened.

tethered cord syndrome

19

What is the relationship between scoliosis and tetherred cord syndrome?

it is suggested that the column will change normal curvatures to mitigate damage to the spinal cord

20

What is the relationship between spinal nerve number, rib number and vertebral number in a thoracic intervertebral foramen?

the spinal nerve number relates to the upper segment number in the vertebral couple the rib number relates to the lower segment number in the vertebral couple i.e. T3 nerve exits the intervertebral foramen formed by T3/T4 and rib 4 joints with this vertebral couple