Other questions in this quiz

2. What do the walls of venules contain?

  • Lots of collagen
  • Little smooth msucle
  • Lots of elastic fibre
  • Lots of collagen and elastic fibre

3. Why do capillaries in the brain have tight junctions?

  • To prevent fluid on the brain
  • Prevent the drainage of brain fluid
  • To prevent essential minerals diffusing into the capillaries
  • Ensure that oxygen does not diffuse back into the capillaries

4. What is the blood pressure in the veins?

  • Very low
  • Greater than the arteries
  • Very high
  • Medium

5. What is the function of arterioles?

  • Link capillaries and veins
  • Constrict and dilate to control blood flow to individual organs
  • Remove tissue fluid
  • Prevent the diffusion of excess water




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