What are vitelline vessels?
n. The artery that carries blood to the yolk sac from the embryo. The vein that carries blood from the yolk sac to the embryo.
What do vitelline veins become?
The vitelline veins give rise to: Hepatic veins. Inferior portion of Inferior vena cava. Superior mesenteric vein.
What is the importance of Vitelline circulation?
The vitelline veins drain blood from the yolk sac. The invasion of endometrial sinusoids by the trophoblast allows maternal blood flow into the trophoblastic lacunae; this forms the uteroplacental blood circulation.
What happens to the vitelline arteries?
The vitelline arteries are the arterial counterpart to the vitelline veins. Like the veins, they play an important role in the vitelline circulation of blood to and from the yolk sac of a fetus. They are a branch of the dorsal aorta….
| Vitelline arteries | |
|---|---|
| Latin | Arteria vitellina |
| Anatomical terminology |
What are anterior cardinal veins?
The anterior cardinal veins are paired transient embryologic venous vessels which deliver venous return to the heart starting at about 4 weeks of gestation 1.
What are cardinal veins?
The common cardinal veins, also known as the ducts of Cuvier, are veins that drain into the sinus venosus during prenatal development. These drain an anterior cardinal vein and a posterior cardinal vein on each side.
Where do the vitelline vessels transport blood?
A pair of vitelline veins, which develop at week 3 of gestation in humans, transport blood from the yolk sac to the heart.
Does the vitelline vein carry oxygenated blood?
The vitelline veins drain the gut tube, the umbilical veins bring oxygenated blood from the placenta, and the cardinal veins drain the head and body wall (Fig.
What is supplied by the vitelline artery?
The vitelline arteries fuse and form the vessels supplying the foregut, midgut and hindgut, respectively the coeliac, superior and inferior mesenteric arteries.
What is posterior cardinal vein?
role in circulatory system. In circulatory system: The blood vessels. …these, the anterior and posterior cardinal veins, each with left and right components, take blood to the heart from the front and rear of the body, respectively. They lie dorsal to the alimentary canal, while the heart lies ventral to it.
What is the function of cardinal veins?
The cardinal venous system returns blood from the embryonic head, neck, and body wall. All three of these drainages enter the sinus venosus of the primitive heart tube.
What is the function of the vitelline system?
Vitelline circulation, the system of blood flowing between an embryo and its yolk sac Vitelline cyst, a developmental defect relating to the closure of the vitelline duct Vitelline duct, a tube that joins the yolk sac to the midgut lumen of a human embryo Vitelline veins, veins that drain blood from the yolk sac
What is a vitelline vein?
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.
What is the vitelline duct?
In the human embryo, the vitelline duct, also known as the vitellointestinal duct, the yolk stalk, the omphaloenteric duct, or the omphalomesenteric duct, is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus.
What is the vitelline membrane made of?
The vitelline membrane or vitelline envelope is a structure surrounding the outer surface of the plasma membrane of an ovum (the oolemma) or, in some animals (e.g., birds), the extracellular yolk and the oolemma. It is composed mostly of protein fibers, with protein receptors needed for sperm binding which, in turn,…