Multiple choice

Maximum surface area of circulating system is seen in

  1. heart

  2. capillaries

  3. vein

  4. arterioles

  5. -

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

Capillaries are fine branching blood vessels that form a network between the arterioles and venules. It is a tube which has an internal diameter of hair-like thinness.