Spinal Cord

Question 1

the continuation of pia mater below the conus medullaris is called

Answer 1

filum terminale internum

Question 2

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

Answer 2

typically S2, the dural cul de sac

Question 3

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

Answer 3

transverse

Question 4

what are the spinal cord enlargement locations and the name given to each

Answer 4

C3-T1, the cervical enlargement

T9-T12, the lumbar/lumbosacral enlargement

Question 5

where is the greatest transverse diameter of the spinal cord

Answer 5

C6

Question 6

what spinal nerves originate from the lumbar/ lumbosacral enlargement

Answer 6

L1-S3 spinal nerves

Question 7

what is a generic cord level of origin- vertebral level combination for the lumbar/ lumbosacral enlargement

Answer 7

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

Question 8

what is the caudal end of the spinal cord called

Answer 8

conus medullaris

Question 9

what spinal nerves originate from the conus medullaris

Answer 9

typically S4, S5, and Co1

Question 10

in which vertebral foramen will the conus medullaris typically be observed

Answer 10

L1

Question 11

the last arterial vasa corona creates what feature on angiogram

Answer 11

cruciate anastomosis

Question 12

what is teh name given to the nerve roots below L1

Answer 12

cauda equina

Question 13

what is the name given to the condensation of meninges below S2

Answer 13

filum terminale externum

Question 14

what is the name given to the caudal attachment of the meninges

Answer 14

coccygeal medullary vestige

Question 15

what is the name given to the condition where the conus medullaris is located below L1 and the filum terminale is thickened

Answer 15

tethered cord syndrome