Question

What is the average speed / velocity of blood flowing in the arteries?

Answer 1

Answer:

3 to 4 mph

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.

Answer 2

Answer:

The heart beat 2.5 billion times in lifetime. Average speed of blood is 3 to 4 mph.