posterior cardinal vein


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posterior cardinal vein

n.
Any of the major drainage channels from the caudal part of an embryo.
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.
During early development, veins draining the body wall open initially into the posterior cardinal veins.
During the 5th to 7th week, paired longitudinal channels, the subcardinal and the supracardinal veins appear by the sides of the posterior cardinal veins.

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