Question

How fast does blood run in a human being​

Answer 1

Answer:

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Blood flow at an average speed of 3 to 4 mph.

Answer 2

Explanation:

The 5 quarts of blood an adult male continually pumps (4 quarts for women) flow at an average speed of 3 to 4 mph — walking speed. That's fast enough so that a drug injected into an arm reaches the brain in only a few seconds. But this blood speed is just an average.