Blood Vessels 0.0 / 5 ? BiologyCells, tissues and organsIGCSEEdexcel Created by: francescakgCreated on: 20-04-17 18:48 Name 3 types of BLOOD VESSELS Arteries, capillaries, viens 1 of 14 ARTERIES Carry blood under high pressure (strong & elastic) 2 of 14 ARTERIES Thick walls (thick layers of muscle - strong) 3 of 14 ARTERIES Largest artery = AORTA 4 of 14 CAPILLARIES ARTERIES branch into CAPILLARIES 5 of 14 CAPILLARIES Really small 6 of 14 CAPILLARIES Carry blood close to cells - exchange substances easily 7 of 14 CAPILLARIES Permeable walls (substances can diffuse out) 8 of 14 CAPILLARIES Supply food & oxygen and take away waste 9 of 14 VIENS Capillaries join to form viens 10 of 14 VIENS Blood is at low pressure (walls aren't thick) 11 of 14 VIENS Big LUMEN to help blood flow 12 of 14 VIENS Have VALVES to keep blood flowing in the right direction 13 of 14 VIENS Largest VIEN = VENA CAVA 14 of 14
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