Multiple choice

Venules are formed from

  1. capillaries

  2. endothelium

  3. arteriole

  4. artery

  5. aorta
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A Correct answer
Explanation

A venule is a very small blood vessel in the microcirculation that allows blood to return from the capillary beds to the larger blood vessels called veins. Venules range from 8 to100 μm in diameter, and are formed when capillaries unite together. Many venules unite to form a vein.

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