Vasculature

Question 1

There are _____ pairs of post. and _____ pairs of ant. radiculomedullary arteries.

Answer 1

31

Question 2

There’s only 5-10 (Unpaired) of _____ a. that helps with Anterior spinal a.

Answer 2

Anterior radiculomedullary artery

Question 3

Anterior 
(5‐10) Radiculomedullary: Great 
radicular
 (artery
 of
 the
 umbar
enlargement)
‐
 Source
 of 
blood 
to
lower 
2/3
 or
 1/2
 of 
the 
cord;
 enters 
from
 left,
usually
 from
 posterior
intercostal
 or 
lumbar
artery,
 within
 the
 range 
of
 _____ roots
.

Answer 3

T8
‐L3


Question 4

Posterior
 Radiculomedullary: only 10
‐
23 helps with ?

Answer 4

Reinforces 
posterior
spinal
 artery


Question 5

Anterior spinal vascularizes _____ part of spinal cord. Includes (3)

Answer 5

Ventral 2/3; Ventral horns, spinothalamic tracts, corticospinal tracts

Question 6

Posterior spinal vascularizes _____ part of spinal cord. Includes?

Answer 6

Dorsal 1/3; Dorsal column and dorsal horns

Question 7

The great radicular artery is artery of _____ enlargement (L1-S3). Significance?

Answer 7

Lumbar; vascularizes areas that controls lower extremity.