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For veins the longest is The great saphenous vein.

For arteries width wise it would be the aorta but length it's the the superficial femoral artery.

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Q: What is the largest a vein or artery in the human body?
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Related questions

What is the second largest vein in human body?

the second largest artery pof the human body is the pulmonary artery


Is the aorta the largest vein in the heart?

No. It is the largest artery in the body.


Is the largest blood vessel desame with the answer of the largest artery in the body?

No because the answer of the largest artery in the body is the aorta...And on the largest vein in the body is the vena cava..:)


Largest artery and largest vein?

The largest vein in the human body is the inferior vena cava, the vein that returns blood from the lower half of the body back to the heart.


What is the position of vein in human body?

its position is next to an artery


What is the largest vain?

the largest vein in the body is the vena cava


What is the largest oxygen rich vein in the human body?

Pulmonary vein.


What is an aorta a artery vein or capillary?

The aorta is the largest artery.


What is the opposite of aorta?

Vena cava. Whereas the aorta is the body's largest artery, the vena cava is the biggest vein.


The largest vein in the body?

The largest vein in the human body is the inferior vena cava. The inferior vena cava is the vein that carries oxygenation blood to the heart for oxygenation.


Why pulmonary is an artery rather than vein?

in our body there are both, pulmonary artery and pulmonary vein


What are the biggest blood vessels?

There are various kinds of blood vessels: *Arteries **Aorta (the largest artery, carries blood out of the heart) **Branches of the aorta ***carotid artery ***subclavian artery ***celiac trunk ***mesenteric arteries ***renal artery ***iliac artery * Veins **Large collecting vessels ***subclavian vein ***jugular vein ***renal vein ***iliac vein **Venae cavae (the 2 largest veins, carry blood into the heart)