Flashcards in Vertebral Column Deck (4)
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0
Q
Meninges
A
- Coverings of the spinal cord
Dura: “Tough Mother” = outermost layer, thick, fibrous tissue
Arachnoid: filmy layer deep to dura matter
Pia: layer covering spinal cord
1
Q
How many bones are in the vertebral column? How many in each region?
A
33 bones total: 7 Cerivcal 12 Thoracic 5 Lumbar 5 Sacral 4 Coccygeal
2
Q
Pia Matter: Denticulate ligament & Filum terminale
A
Denticulate ligament- anchors spinal cord to dura matter, found at midpoint between two spinal nerves
Filum Terminale = thin piece of pia extending distally; termination of spinal cord
3
Q
Spaces of Meninges
A
- Epidural - space between vertebral canal and dura matter
- subdural (potential space, only seen pathologically)- space between dura and arachnoid matter
- Subarachnoid- space between arachnoid matter and pia matter
- contains Cerebrospinal fluid
- Lumbar cistem enlargement of subarachnoid space inferior to conus medullaris