- vitelline veins
- veins that return the blood from the yolk sac to the primordial heart of the early embryo. Called also omphalomesenteric v's.
Medical dictionary. 2011.
vitelline veins
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Vitelline veins — The liver and the veins in connection with it, of a human embryo, twenty four or twenty five days old, as seen from the ventral surface. (Vitelline veins visible at center bottom.) Gray s … Wikipedia
Vitelline circulation — refers to the system of blood flowing from the embryo to the yolk sac and back again.The yolk sac is situated on the ventral aspect of the embryo; it is lined by entoderm, outside of which is a layer of mesoderm. It is filled with fluid, the… … Wikipedia
Vitelline — can refer to:* Vitelline duct * Vitelline veins … Wikipedia
Vitelline arteries — Infobox Embryology Name = PAGENAME Latin = GraySubject = GrayPage = Caption = Model of human embryo 1.3 mm. long. (Vitelline arteries not shown, but vitelline arteries labeled at center left.) Caption2 = System = CarnegieStage = 13 Days = 28… … Wikipedia
vitelline vesicles — arteries and veins of the yolk region … Dictionary of ichthyology
vitelline vein — noun : one of the veins in a vertebrate embryo that return the blood from the yolk sac to the heart or later to the portal vein and in mammals have their function of bringing nutriment to the embryo superseded early by that of the umbilical vein … Useful english dictionary
Common cardinal veins — Scheme of arrangement of parietal veins … Wikipedia
omphalomesenteric veins — vitelline v s … Medical dictionary
animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by … Universalium
Circulatory system — This article is about the organ system. For the band, see Circulatory System. For transport in plants, see Vascular tissue. Circulatory system … Wikipedia
