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Posterior Radicular Veins (Sacral; Right)
Cardiovascular System

Posterior Radicular Veins (Sacral; Right)

Venae radiculares posteriores

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Quick Facts

Origin: Along the posterior roots of the spinal cord.

Course: Pass laterally to accompany the spinal nerves.

Tributaries: None.

Drainage: Posterior roots and spinal ganglia.

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Origin

The posterior radicular veins are small veins that originate along the posterior roots of the spinal cord.

Course

The posterior radicular veins pass laterally in the subarachnoid space towards the intervertebral foramen where they drain into the intervertebral veins.

Tributaries

There are no named tributaries.

Structures Drained

The posterior radicular veins primarily drain the posterior roots of the spinal cord, including the spinal (dorsal root) ganglia.

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Internal Vertebral Venous Plexuses

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The internal vertebral venous plexus is located beneath the bony elements of the vertebral foramina (laminae, spinous processes, pedicles, and vertebral body).

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