External vertebral venous plexuses
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|Vein: External vertebral venous plexuses|
|Transverse section of a thoracic vertebra, showing the vertebral venous plexuses.|
|Median sagittal section of two thoracic vertebrae, showing the vertebral venous plexuses.|
|Latin||plexus venosi vertebrales externi|
|Gray's||subject #172 668|
The external vertebral venous plexuses (extraspinal veins) best marked in the cervical region, consist of anterior and posterior plexuses which anastomose freely with each other.
- The anterior external plexuses lie in front of the bodies of the vertebræ, communicate with the basivertebral and intervertebral veins, and receive tributaries from the vertebral bodies.
- The posterior external plexuses are placed partly on the posterior surfaces of the vertebral arches and their processes, and partly between the deep dorsal muscles.
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