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Veins are the vessels that carry de-oxygenated blood back the heart. Without the venous system, there would be no way for blood to return to the heart, and circulation would not be complete.

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Q: Why are vein important in blood circultion?
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Related questions

What is the most important vein?

The pulmonary vein is the most important vein found in the heart because it brings oxygenated blood from the lungs into the left atrium.


What major blood vessels take blood to the hepatic vein?

the gastrosplenic vein joins the superior mesenteric vein and takes blood to the hepatic vein


When was Blood-vein created?

Blood-vein was created in 1931.


Why is it important for a persons blood to produce fibrin?

Because it helps close the cut in the vein.


Which is the only vein in the body to carry oxygenated blood?

The PULMONARY vein. Pulmonary = lungs. Vein = ALWAYS carries blood TO the heart.


What major vessels take blood to hepatic portal vein?

Gastrosplenic Vein joins the Superior Mesenteric Vein and takes blood to Hepatic Portal Vein and delivers blood to liver.


What vein carry blood away from the heart?

the blood that carries blood from your heart is your arteries


How come vampires drink blood from your neck if it is not the biggest blood source in your body?

It Is, That Is Where The Jugular Vein Is. The Jugular Vein Is The Biggest Most Important Vein In The Body And Runs Down Thw Side Of The Neck, If Opened There Is No Way To Close It And It Is Pressurized So It Spurts. All Your Blood Will Be Out Of Your Body Within 4 Minutes.


Vein of the fetal pig that carries oxygenated blood?

There are two veins that carry oxygen they are the Pulmonary vein and the Umbilical vein:-)


How does the blood flow when a vein is cut?

Blood flow from a vein is slower than that from an artery.


What is the name of the vein in the neck bringing blood from?

Jugular vein


What does the vein?

The vein carries the blood back to the heart