Intervertebral veins

The intervertebral veins accompany the spinal nerves through the intervertebral foramina; they receive the veins from the medulla spinalis, drain the internal and external vertebral plexuses.

Their drainage depends upon the part of the body:


 * neck: vertebral vein
 * thorax: intercostal veins
 * lumbar region: lumbar veins
 * sacral region: lateral sacral veins

Their orifices are provided with valves.