Spinal cord vasculature

Question 1

Which is the major artery supplying the anterior 2/3 of the spinal cord?

Answer 1

The anterior spinal artery

Question 2

From where does the anterior spinal artery arrise?

Answer 2

From vertebral artery from both sides.

Question 3

There are radicular arteries accompanying the nerve root at many levels but most ncontribute little to the spinal cord itself. From where does these radicular arteries arrise?

Answer 3

From aorta.

Question 4

Although most radicular arteries does not contribute a lot to the spine, 6-9 of them do by attaching to the anterior spinal artery. What is their common name?

Answer 4

Radiculomedullary arteries.

Question 5

One of the radiculomedullary arteries give the main supply from Th8 and to conus. What is it called?

Answer 5

Adamkiewicz AKA arteria radicularis anterior magna?

Question 6

80% of time the Adamkiewitz artery come from the same side. Which?

Answer 6

the left

Question 7

What part pf the spine has a watershed zone?

Answer 7

mid thoracic.