Arteries Veins and Capillaries

  • Created by: Alexxxxx
  • Created on: 06-04-13 13:58



  • Artery has a thick wall


  • Thin smooth inner endothelial wall - prevents blood from clotting inside vessels


  • Thick muscle/elastic fibre layer - to stretch to accomodate pressure changes


  • Tough outer layer of collagen fibres - prevents rupturing


  • Lumen size is small in comparison to it's thick wall - this to maintain high blood pressure


  • It's function is to carry oxygenated blood to all major organs in the body.


  • They subdivide and branch out into arterioles - become finer and smaller


  • Have no valves, except in the aorta and pulmonary artery - prevents blood flowing back to the heart.




Sam Morran


This is a good, clear resource that summarises the differences between the three vessels.  I like the fact that it is short and concise and has clear pictures with it.