Blood Vessels 0.0 / 5 ? BiologyBlood VesselsASEdexcel Created by: Alexandra PicklesCreated on: 08-10-13 09:23 Capillaries One cell thick walls Allow for rapid diffusion Slow blood travel 1 of 3 Vein Large lumen Contain valves Tough outer layer of collegen fibres Thin muscle layer Smooth inner surface Less resistance to blood passing through Dont maintain high pressures Stop backflow 2 of 3 Arteries Smooth lining Smooth muscle and elsatic fibres Small lumen (when unstretched) High blood pressures Expand wth blood flow Carry blood away from heart 3 of 3
Explain the course of events that leads to atherosclerosis (endothelial damage, inflammatory response, plaque formation, raised blood pressure). (Activity 1.8) 0.0 / 5
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