chapter 4

    Cards (88)

    • What organ pumps blood around the body?
      The heart
    • What type of tissue is the heart made from?
      Cardiac muscle tissue
    • What supplies the cardiac muscle tissue with oxygen?
      Coronary artery
    • Which chamber of the heart pumps blood to the lungs?
      Right ventricle
    • Which vessel brings oxygenated blood from the lungs to the heart?
      Pulmonary vein
    • Which chamber of the heart receives oxygenated blood from the lungs?
      Left atrium
    • Which chamber of the heart pumps blood around the body?
      Left ventricle
    • Which vessel takes deoxygenated blood to the lungs?
      Pulmonary artery
    • Which vessel brings deoxygenated blood into the heart?
      Vena cava
    • Which chamber of the heart receives deoxygenated blood from the body?
      Right atrium
    • Which vessel carries oxygenated blood around the body?
      Aorta
    • Where are the cells that control heart rate located?
      Right atrium
    • How do the cells in the right atrium control heart rate?
      Generate electrical impulses
    • What is the function of the group of cells in the right atrium?
      Acting as a pacemaker
    • What can be used to control irregular heartbeats?
      Artificial pacemakers
    • Which type of blood vessel carries blood away from the heart?
      Artery
    • Why do arteries have thick, muscular, and elastic walls?
      To withstand high pressure
    • What is the lumen size of an artery?
      Small
    • Why do arteries have elastic walls?
      So the walls can stretch
    • Which type of blood vessel carries blood to the heart?
      Vein
    • Why do veins have valves?
      To stop blood flowing the wrong way
    • What is the lumen size of a vein?
      Large
    • What is the structure of the walls of veins?
      Thin walls
    • Which type of blood vessel carries blood to tissues and cells?
      Capillary
    • Which type of blood vessel connects arteries and veins?
      Capillary
    • What is the thickness of a capillary wall?
      One cell thick
    • Why are capillary walls one cell thick?
      Short diffusion distance
    • What is the lumen size of a capillary?
      Very narrow
    • What type of circulatory system do humans have?
      Double circulatory system
    • Why is the human circulatory system described as a double circulatory system?
      Blood passes through the heart twice
    • What happens to blood in the lungs?
      Gas exchange takes place
    • What is blood?
      A tissue
    • How many main components is blood made up of?
      Four
    • What is the function of red blood cells?
      Bind to oxygen and transport it
    • What is the function of plasma?
      Transports substances and blood cells
    • What is the function of platelets?
      Form blood clots
    • What is the purpose of blood clots?
      Create barriers to infections
    • What is the function of white blood cells?
      Defend the body against pathogens
    • What causes Coronary heart disease?
      Build up of fatty material
    • What does the build up of fatty material do to the coronary arteries?
      Making them narrow