Why are the ventricle walls thicker than the atria walls?

  1. Ventricles pump blood out of the heart over a longer distance
  2. Ventricles hold less blood
  3. Atria pump blood to the body
  4. Atria have valves
Answer

A) Ventricles pump blood out of the heart over a longer distance

Ventricles need more force. O Level Biology · Topic 11 Transport in Humans · 11.2 Heart

Biology MCQ · More O Level Biology: Transport in Humans MCQs · Practise