Heart

    Cards (16)

    • What are the main components of the circulatory system?
      Heart, blood vessels, and blood
    • What type of circulatory system do humans have?
      Double circulatory system
    • What is the main artery that carries blood away from the heart?
      Aorta
    • Which chamber of the heart receives blood from the body?
      Right atrium
    • Which chamber of the heart receives blood from the lungs?
      Left atrium
    • What happens to blood when the atria contract?
      Blood goes into the ventricles
    • What occurs when the ventricles contract?
      Blood pumps out of the heart
    • Through which arteries does blood exit the heart?
      Pulmonary artery and aorta
    • What are pacemakers in the heart?
      Cells that control the heartbeat
    • Where are pacemakers located in the heart?
      In the front atrium
    • What do pacemakers produce?
      Electrical impulses
    • What do electrical impulses from pacemakers cause?
      Heart to contract
    • What is an artificial pacemaker?
      A device implanted to regulate heartbeat
    • How does an artificial pacemaker work?
      It sends electrical currents to the heart
    • What do coronary arteries supply to the heart?
      Oxygenated blood
    • Why is oxygenated blood important for the heart?
      It provides energy for heart function
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