which type of blood vessel usually carries oxygen-rich blood?

Arteries are the type of blood vessel that usually carry oxygen-rich blood from the heart to the rest of the body.

Quick Scoop

Most of the time, arteries transport blood that is rich in oxygen and nutrients away from the heart to body tissues. The main example is the aorta, the large artery that sends oxygen-rich blood from the left ventricle out to the body.

One Important Exception

There is a classic exception that teachers and exam questions like to highlight. The pulmonary arteries carry oxygen-poor blood from the right ventricle to the lungs, while the pulmonary veins carry oxygen-rich blood back from the lungs to the heart. So the rule is about “usually”: arteries usually carry oxygen-rich blood, but not always.

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