The spinal cord has an intrinsic blood flow, in which the anterior and posterior spinal arteries, as well as their branches, are responsible for 74% of the irrigation; and an extrinsic blood flow, in which radicular arteries irrigate the nerve roots.
La medula espinal posee aporte sanguíneo intrínseco, en el cual la arteria espinal anterior, la posterior y sus ramos, son los responsables del 74% de la irrigación, y aporte extrínseco, en el cual las arterias radiculares irrigan las raíces nerviosas.
A medula espinal possui aporte sanguíneo intrínseco, no qual a artéria espinal anterior, a posterior e seus ramos são responsáveis por 74% da irrigação, e aporte extrínseco, no qual as artérias radiculares irrigam as raízes nervosas.