|Vein: Basivertebral veins|
|Transverse section of a thoracic vertebra, showing the vertebral venous plexuses.|
|Median sagittal section of two thoracic vertebrae, showing the vertebral venous plexuses.|
|Gray's||subject #172 668|
They communicate through small openings on the front and sides of the bodies of the vertebræ with the anterior external vertebral plexuses, and converge behind to the principal canal, which is sometimes double toward its posterior part, and open by valved orifices into the transverse branches which unite the anterior internal vertebral plexuses.
They become greatly enlarged in advanced age.
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.