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Re: Suboccipital Region, Vertebral Canal, and Spinal Cord - True/False

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Posted by Daniel on November 01, 2017 at 13:28:40:

In Reply to: Suboccipital Region, Vertebral Canal, and Spinal Cord - True/False posted by lae2 on October 31, 2017 at 12:20:07:

: Suboccipital Region, Vertebral Canal, and Spinal Cord - True/False

: 1. The thoracic and sacral curvatures are kyphotic.
Concur.
: 2. The orientation of the thoracic facets are more favorable than the orientation of the lumbar facets.
Unsure.
: 3. The posterior longitudinal ligament defines, in part, the anterior border of the spinal canal.
Concur.
: 4. The ligamentum flavum defines, in part, the posterior border of the vertebral foramen.
Concur.
: 4. The anterior and posterior longitudinal ligament resist extension and add support to the intervertebral disc.
Oppose, PLL resists flexion.
: 5. The pedicles define, in part, the lateral border of the spinal canal.
Concur.
: 6. Lateral extensions of the posterior longitudinal ligament support the annular surround of the intervertebral disc.
Concur.
: 7. The spinal cord ends at vertebral level L1/2 and extensions of the cauda equina pass through the sacral hiatus.
Concur.
: 8. The subarachnoid space, containing cerebral spinal fluid, ends with the dura arachnoid maters collapsing onto pia matter at the vertebral level of S2.
Concur.
: 9. Filum terminale externum passes through the sacral hiatus.
Oppose, ends at sacral hiatus?
: 10. Filum terminale internum ends at vertebral level S2.
Concur.
: 11. The cervical and lumbar enlargements give rise to the cervical and brachial plexus; and the lumbar and sacral plexus, respectively.
Concur.
: 12. A needle that enters the subarachnoid space passed through the epidural space.
Concur.
: 13. A needle that enters and stops at the epidural space passed through the subarachnoid space.
Oppose.
: 14. The anterior spinal artery is formed by branches from the left and right vertebral arteries.
Concur, anterior segmental medullary arteries.
: 15. Radicular arteries arise from posterior intercostal, lumbar, and lateral sacral arteries.
Concur.
: 16. Occlusion of the artery of Adamkiewicz, resulting from surgical procedures, is expected to cause paraplegia.
Concur.
: 17. The internal and external vertebral venous plexus, collectively, provide a shunt across the caval veins.
Concur.
: 18. Venous spread of metastatic disease may enter the internal vertebral plexus and cause bone metastasis of the vertebral column.
Concur.
: 19. The denticulate ligaments are specializations of the arachnoid mater that help stabilize the spinal cord to the lateral wall of the spinal canal.
Oppose, pia mater.
: 20. The suboccipital nerve (dorsal ramus of C1) provides motor innervation to the muscles of the suboccipital triangle and does not have a cutaneous distribution.
Concur.



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