Spinal Cord

Question 1

What is the spinal cord and its function?

Answer 1

Component of the CNS
- direct continuation of the brainstem

Function:
- relay information between the peripheral structures and brain

Question 2

Which structure contain in the spinal cord in the vertebral column

Answer 2

Vertebral Canal

Question 3

What spinal region contains the largest amount of gray mater?

Answer 3

Lumbar Spine

Question 4

Where does the spinal column receive its blood supply

Answer 4

Vertebral artery: Forming 1 Anterior Spinal Artery and 2 Posterior Spinal Arteries

Question 5

What structures do the spinal cord run from?

Answer 5

Foramen magnum > Conus Medullaris (between 1st and 2nd lumbar vertebrae)

Question 6

What is the dorsal root?

Answer 6

Sensory with afferent fibers

Question 7

What is the ventral root?

Answer 7

Motor with efferent fibers

Question 8

What is Brown-Sequard syndrome?

Answer 8

An incomplete lesion typically caused by a stab wound

Question 9

How does Brown-Sequard Syndrome present?

Answer 9

Ipsilateral

• Paralysis, loss of vibratory sense and proprioception
  (due to damage to the corticospinal tracts and the DCML)

Contralateral

• Loss of pain and temperature sense of the contralateral side of the lesion.
  (due to damage of the anterolateral system; lateral spinothalamic tract)