Muscular arteries control the flow of blood to organs by

  1. using valves
  2. contracting or relaxing the smooth muscle in their walls
  3. stretching
  4. filtering plasma
Answer

B) contracting or relaxing the smooth muscle in their walls

Vasoconstriction and vasodilation. AS & A Level Biology · Topic 8 Transport in Mammals · 8.1 The circulatory system

Biology MCQ · More A Level Biology: Transport in mammals MCQs · Practise