vitelline sac
1vitelline sac — noun membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional • Syn: ↑yolk sac, ↑umbilical vesicle, ↑vesicula umbilicus • Hypernyms: ↑sac …
2vitelline sac — see yolk sac * * * yolk s …
3vitelline sac — yolk sac …
4Vitelline duct — Fetus of about eight weeks, enclosed in the amnion. (Vitelline duct labeled at lower right.) …
5Vitelline 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 …
6Vitelline 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… …
7Мешок Желточный (Yolk Sac, Vitelline Sac) — внезародышевый орган мешок, образованный слоем мезодермы, выстланного эндодермой; расположен вблизи пупочной области развивающегося зародыша. Вначале тесно связан с эмбриональной кишкой, однако со временем эта связь сохраняется лишь в виде узкого …
8Sac vitellin — ● Sac vitellin synonyme de vésicule vitelline et de vitellus …
9sac — 1. A pouch or bursa. SYN: saccus [TA]. SEE ALSO: sacculus. 2. An encysted abscess at the root of a tooth. 3. The capsule of a tumor, or envelope of a cyst. [L. saccus, a …
10vitelline — ● vitellin, vitelline adjectif (latin vitellus, jaune d œuf) Qui se rapporte au vitellus ; qui le contient. ● vitellin, vitelline (expressions) adjectif (latin …
