Posterior cardinal vein
Posterior Cardinal Vein
The Posterior Cardinal Vein (Pronunciation: pos-teer-ee-or kar-di-nal vayn) is a significant component of the embryonic circulatory system in vertebrates.
Etymology
The term "Posterior Cardinal Vein" is derived from Latin roots. "Posterior" (Latin: Posterior) meaning "coming after", "Cardinal" (Latin: Cardinalis) meaning "principal" or "chief", and "Vein" (Latin: Vena) referring to a blood vessel that carries blood towards the heart.
Function
The Posterior Cardinal Vein is responsible for draining the blood from the posterior part of the embryo. It is one of the three paired cardinal veins, the others being the Anterior Cardinal Vein and the Common Cardinal Vein. These veins are the primary venous system in the early embryonic stage, which later give rise to the major veins in the adult circulatory system.
Development
The development of the Posterior Cardinal Vein is a complex process that involves the formation, remodeling, and regression of various parts of the embryonic venous system. It is formed from the Lateral Plate Mesoderm, a layer of the embryo that also gives rise to other structures such as the heart, blood vessels, and blood cells.
Related Terms
- Anterior Cardinal Vein: The vein that drains blood from the anterior part of the embryo.
- Common Cardinal Vein: The vein that is formed by the union of the anterior and posterior cardinal veins.
- Lateral Plate Mesoderm: The embryonic layer that gives rise to the heart, blood vessels, and blood cells.
External links
- Medical encyclopedia article on Posterior cardinal vein
- Wikipedia's article - Posterior cardinal vein
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