Spinal Cord Flashcards Preview

Spinal Anatomy > Spinal Cord > Flashcards

Flashcards in Spinal Cord Deck (20):
1

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

Transverse

2

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

C3-T1, The cervical enlargement
T9-T12, The lumbar (lumbosacral) enlargement

3

Where is the greatest transverse diameter for the spinal cord?

C6

4

In which plane (or direction) will the diameter of the spinal decrease from C2 down to T1?

Midsagittal or anterior-posterior plane

5

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

L1-S3 spinal nerves

6

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

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

7

What is the caudal end of the spinal cord called?

Conus medullaris

8

What spinal nerves originate from the conus medullaris?

Typically S4, S5, and Co1

9

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

L1

10

What is the name given to the nerve roots below L1

Cauda Equina

11

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

Filum terminale internum

12

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

Typically S2, the dural cul de sac

13

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

Proximal part of the filum terminale internum

14

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

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

15

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

Lower limbs and the external anal sphincter

16

The last arterial vasa corona creates what feature on angiogram?

Cruciate anastomosis

17

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

Filum terminale externum

18

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

Coccygeal medullary vestige

19

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

20

What is the relationship between scoliosis and tethered cord syndrome?

It is suggested that the column will change normal curvatures to mitigate damage to the spinal cord caused by a tethered cord