| 单词 | cardinal vein |
| 释义 | > as lemmascardinal vein cardinal vein n. Embryology and Zoology (originally) either of the two main veins draining the posterior part of the body in an early vertebrate embryo; (in later use) any of the main veins draining both ends of the body of such an embryo, which form the framework for later development of the venous system of most vertebrates but persist in some groups, esp. fishes. [After German Kardinalvene (1837 or earlier as †Cardinalvene).] ΚΠ 1842 W. Baly tr. J. Müller Elements Physiol. II. viii. 1625 In the original condition there are two anterior venous trunks (the jugular veins) and two posterior trunks, which Rathke names the cardinal veins [Ger. Cardinalvenen]. 1913 J. W. Jenkinson Vertebr. Embryol. vii. 168 Posteriorly the heart receives the two ductus Cuvieri, bringing back the blood from the cardinal veins in the body-wall, and the two vitelline veins bringing blood from the liver and gut. 2016 J. D. Spratt in R. S. Tubbs et al. Bergman's Comprehensive Encycl. Human Anat. Variation lxv. 842/2 There are other variations in the development of the great veins from the common cardinals, primitive jugular, and anterior and posterior cardinal veins. < as lemmas |
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