Radicular artery

The anterior and posterior radicular arteries are 32 pairs of small/ variously sized arteries that enter an intervertebral foramen, bifurcating within it to form an anterior and a posterior radicular artery which accompany the anterior root and posterior root of a spinal nerve, respectively. They supply the corresponding spinal cord segment as well as the anterior and posterior root of the spinal nerve and its sensory ganglion (dorsal root ganglion).

At the level of the lumbosacral enlargement, a relatively large radicular artery (the great radicular artery) that reaches the spinal cord is often present.

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