cardinal vein


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cardinal vein

[′kärd·nəl ‚vān]
(embryology)
Any of four veins in the vertebrate embryo which run along each side of the vertebral column; the paired veins on each side discharge blood to the heart through the duct of Cuvier.
References in periodicals archive ?
It is formed between the sixth and eighth weeks of embryonic development via a series of anastomoses and regressions of the following primitive trunk veins: posterior cardinal veins, subcardinal veins and supra cardinal veins.
The cephalic parts of anterior cardinal veins form the internal jugular veins and the caudal part of the right anterior cardinal vein develop into the normal right superior vena cava (RSVC).
Based on its lateral position, it is probably the remnant of left posterior cardinal vein and not the supra-cardinal vein as the former is ventrolateral to the latter during development.
This process is preceded by anastomoses between the posterior cardinal veins, draining the blood flowing from the body wall caudal to the heart, and the subcardinal veins.