Blood Vessels

HideShow resource information
  • Created by: NWILKA1
  • Created on: 25-05-14 19:46
View mindmap
  • Blood Vessels
    • Arteries
      • Where blood flows out of the heart under high pressure.
      • Have thick walls made of muscle and elastic tissue.
        • Elastic tissue allows the artery to expand when blood is forced through it.
    • Veins
      • Have much thinner walls than arteries as the blood flowing through them is at a much lower pressure.
      • Have valves to prevent back-flow in long veins (leg)
    • Capillaries
      • The smallest blood vessels.
      • Where substances pass in and out of the blood.
      • Have very thin walls (one cell thick) to allow substances to pass in and out easily.

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cells, tissues and organs resources »