Which one of the following does not have valves?(a) heart   (b) arteries   (c) capillaries   (d) veins

(c) capillaries

Capillaries are the smallest blood vessels in the body that convey blood between the arterioles and venules.

They are the small blood vessel from 5 to 10 micrometres in diameter and have a thin-wall which do not have a valve.

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Updated on: 24-Mar-2023

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