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Posterior Segmental Medullary Veins (Sacral; Left)
Cardiovascular System

Posterior Segmental Medullary Veins (Sacral; Left)

Venae medullares segmentales posteriores

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Quick Facts

Origin: Posterior spinal veins, in the subarachnoid space surrounding the spinal cord.

Course: Pass laterally to accompany the posterior roots of the spinal cord to meet the anterior segmental medullary veins.

Tributaries: Posterior and posterolateral spinal veins.

Drainage: Dorsal aspect of the spinal cord and the subarachnoid space.

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Origin

The posterior segmental medullary veins originating at the lateral aspect of the posterolateral and posterior spinal veins.

Course

The posterior segmental medullary veins pass laterally in the subarachnoid space towards the intervertebral foramen where it meets the anterior segmental medullary veins and drains into the intervertebral veins.

Tributaries

The posterior segmental medullary veins receive the posterior and posterolateral spinal veins and the network formed between these vessels.

Structures Drained

The posterior segmental medullary veins primarily drain the dorsal aspect of the spinal cord and the subarachnoid space.

Complete Anatomy

The world's most advanced 3D anatomy platform

Complete Anatomy