Structure and Function of the Cardiovascular System

  1. What is the cardiovascular system composed of?
    The heart and a system of blood vessels to transport blood around the body
  2. What does blood carry round the body?
    Oxygen, carbon dioxide, urea, digested food, hormones, white blood cells and warmth
  3. Do arteries carry blood to or away from the heart?
    Away from the heart
  4. What characteristics must arteries have?
    Arteries must have strong elastic walls to cope with the surge of blood as it leaves the heart
  5. What are capillaries?
    Tiny vessels between the arterioles and veriules
  6. What characteristics do capillaries have?
    The walls are one cell thick allowing diffusion of gases (O2 and CO2) and nutrients with ease
  7. What are veins do?
    Carry deoxygenated blood back to the heart
  8. What characteristics do veins have?
    Thinner walls than arteries.  Have valves to stop blood flowing backwards.  Blood pressure is much lower than in arteries.
  9. What are the four chambers of the heart?
    Left ventricle, right ventricle, left atrium and right atrium
  10. Which are the right and left atrium?
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    A and C
  11. Which are the right and left ventricles?
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    B and D
  12. Label the aorta, vena carva, pulmonary vein and pulmonary artery
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Card Set
Structure and Function of the Cardiovascular System
Advanced Higher Biology - Unit Three - Physiology, Health and Exercise