Spinal cord

Question 1

Where does spinal cord end

Answer 1

Lower border of the first lumbar vertebra. It is called conus medullaris.

Question 2

What is spinal cord surrounded by

Answer 2

Three meninges:
1. The dura mater.
2. the arachnoid mater.
3. the pia mater.

Question 3

What is cauda equina

Answer 3

The roots of the lumbar and sacral spinal nerves, which form a bundle within the lowest part of the spinal column.

Question 4

Ascending and descending tracts of spinal cord

Answer 4

Sensory tract is ascending. Examples include dorsal column system and anterolateral system.
Motor tract is descending. Examples include corticospinal tract