Appendicular vein

As an organ, the appendix is a vestigial structure. It no longer serves its intended purpose in the human digestive tract, yet it has not disappeared over the course of human biological evolution. It is, however, thought to be home to some of the bacteria that aid digestion within the large intestine. Even if its primary use is now unclear, it is still living tissue in need of the circulatory system The appendicular vein removes deoxygenated blood from the appendix, which is located at the bottom of the ascending colon. From there, the blood enters the ileocolic vein, and after that flows through the superior mesenteric vein. As the deoxygenated blood works its way through the venal system, it eventually ends up in the inferior vena cava, the lungs, and the heart. Once fresh oxygen is added to the blood, the heart pumps it into the arterial system, and the circulatory system starts anew. In this regard, the appendicular vein is not the same as the appendicular artery. As a blood vessel, the artery delivers oxygenated blood to the appendix.
Written and medically reviewed by the Healthline Editorial Team
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In Depth: Appendicular vein

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