Vitelline arteries

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Vitelline Arteries

The Vitelline arteries are a group of blood vessels that supply the yolk sac in the developing embryo. They are derived from the primitive aorta and are responsible for the vascularization of the yolk sac, which provides nourishment to the embryo in the early stages of development.

Etymology[edit | edit source]

The term "vitelline" is derived from the Latin word "vitellus", which means "yolk". This is a reference to the function of these arteries, which is to supply blood to the yolk sac.

Development[edit | edit source]

The vitelline arteries develop from the primitive aorta in the embryo. They extend to the yolk sac and form a network of vessels that supply it with blood. The yolk sac is an important source of nourishment for the embryo in the early stages of development.

Function[edit | edit source]

The primary function of the vitelline arteries is to supply the yolk sac with blood. The yolk sac is a temporary structure that provides nourishment to the embryo in the early stages of development. The blood supplied by the vitelline arteries carries nutrients and oxygen to the yolk sac, which are then transferred to the embryo.

Clinical Significance[edit | edit source]

Abnormalities in the development or function of the vitelline arteries can lead to a variety of congenital anomalies. For example, persistence of the vitelline artery can result in a condition known as Meckel's diverticulum, which can cause complications such as bleeding and obstruction in the gastrointestinal tract.

Related Terms[edit | edit source]

See Also[edit | edit source]

Vitelline arteries Resources
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Contributors: Prab R. Tumpati, MD