Spinal Cord Flashcards
In the horizontal view, what direction of the spinal cord tends to be the largest?
transverse
What are the spinal cord enlargement locations and the name given to each?
C3-T1; the cervical enlargement
T9-T12; the lumbar (lumbosacral) enlargement
Where is the greatest transverse diameter of the spinal cord?
C6
In which plane will the diameter of the spinal decrease from C2 to T1?
midsagital or anterior-posterior plane
What spinal nerves originate from the lumbar (lumbosacral) enlargement?
L1-S3 spinal nerves
What is a generic cord level of origin- vertebral level combination for the lumbar (lumbosacral) enlargement?
L1, L2 Cord Level in the T9 vertebra
L3, L4 cord level in T10 vertbebra
L5, S1 cord level in T11 vertebra
S2, S3 cord level in T12 vertebra
What is the caudal end of the spinal cord called?
conus medullaris
what spinal nerves typically originate from the conus medullaris?
Typically S4, S5, Co1
In which vertebral foramen will the conus medullaris typically be observed?
L1
What is the name given tho the nerve roots below L1
Cauda Equina
what is the continuation of pia mater below the caudal equina called
fillium terminale internum
What is the location and name given to the area where all meninges first converge at the caudal part of the vertebral column?
S2, Dural cul de sac
Neural tissue has been identified in what part of the filum terminal?
proximal part of the filum terminale internum
The last arterial vasa corona creates what feature on angiogram?
cruciate anastomosis
What is the name given to the condensation of meninges below S2?
filum terminale externum
