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A venule is a small vein. A vein always carries blood to the heart and usually carries oxygen poor blood.

Since the circulatory system is circular, all of the vessels connect at some point. That happens in capillary beds, which are where venules (small veins) and arterioles (small arteries) meet. Arteries carry blood away from the heart and are usually oxygen rich.

Venules fuse to form veins that bring the blood back to the heart where it can get oxygenated and deliver it to body tissues where the whole cycle starts again.

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11y ago

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A venule is a small blood vessel in the microcirculation that allows deoxygenated blood to return from the capillary beds to the larger blood vessels called veins.

Venules are blood vessels that drain blood directly from the capillary beds. Many venules unite to form a vein.

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15y ago
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Q: What is the function of venules?
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