Multiple choice

The velocity of blood is the maximum in

  1. large veins

  2. small veins

  3. venules

  4. capillaries

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Velocity (V) is proportionate to flow (Q) divided by the area of conduit (A). Therefore, the average velocity of the blood is high in the aorta, declines steadily in the smaller vessels and is the lowest in the capillaries, which have 1000 times the total cross-sectional area of aorta.