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Posterior Radicular Artery (Thoracic; Left)
Cardiovascular System

Posterior Radicular Artery (Thoracic; Left)

Arteria radicularis posterioris

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Quick Facts

Origin: Radicular artery.

Course: Accompany the posterior roots of the spinal cord through the intervertebral foramina.

Branches: None.

Supplied Structures: Posterior roots of spinal cord and spinal ganglia.

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Origin

After the radicular arteries arise from the lateral spinal branches of the vertebral, ascending cervical, intercostal, subcostal, and lumbar arteries, they divide into anterior and posterior branches.

Course

The posterior radicular arteries pass medially to enter the intervertebral foramina at each vertebral level. They accompany the posterior roots of the spinal cord.

Branches

There are no named branches.

Supplied Structures

The posterior radicular arteries supply the posterior roots of the spinal cord and the spinal ganglia (dorsal root ganglia).

Learn more about this topic from other Elsevier products

Radicular Artery

ScienceDirect image

The radicular arteries divide, outside the dura mater, into branches that follow the course of ventral and dorsal roots to supply them.

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