Which one of the following blood vessels is single cell in thickness?

A ) Capillaries ✅

B ) Veins

C ) Arteries

D ) Venules

Related Questions
  1. The pulmonary artery carries ------:
  2. The largest artery in the human body is the------:
  3. Veins carry blood -----:
  4. The blood vessels contain valves to prevent backflow of blood?
  5. Blood pressure is highest in-----:
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