Spinal cord and meninges Flashcards
1
Q
Where is the spinal cord?
A
begins at the foramen magnum of the skull and ends at the L1/2 vertebrae
2
Q
How are nerves numbered?
A
- cervical numbered according to vertebrae below C1-C8
- all other nerves numbered according to vertebrae above
3
Q
What are the three membranes of the spinal meninges?
A
dura mater
arachnoid mater
pia mater
4
Q
What is the extradural space?
A
fatty matrix running from the foramen magnum to the sacral hiatus
5
Q
What are the two sets of arteries supplying the spinal cord?
A
3 longitudinal arteries
numerous segmental arteries
6
Q
What controls the venous drainage of the spinal cord?
A
internal vertebral venous plexus
external vertebral venous plexus
7
Q
What does the needle pass through for a lumbar puncture?
A
supraspinous ligament
interspinous ligament
ligamentum flavum
