Blood Supply

Question 1

Arteries of the Spinal Cord

Answer 1

Anterior & posterior spinal arteries –
branches of vertebral artery

Question 2

Segmental spinal branches of the rest of the arteries exclude C7-T2 & T2 to Lower

Answer 2

the anterior & posterior radicular arteries

Question 3

Segmental spinal branches of C7-T2

Answer 3

-deep cervical and ascending cervical

Question 4

Segmental spinal branches of T2 to lower end of the cord

Answer 4

Posterior intercostal lumbar arteries

Question 5

Anterior spinal artery syndrome:

Answer 5

Occlusion due to thrombosis or compression of anterior spinal artery

Question 6

What are the result of Anterior spinal artery syndrome:

Answer 6

Motor symptoms – due to involvement of corticospinal tract
* Bilateral loss of pain and temperature due to ischaemia of spinothalamic tracts

Question 7

Venous drainage of spinal cord

Answer 7

The longitudinal veins communicates with the Inferior vena cava, Azygos vein and into the basilar venous plexus