Cardiovascular system

• Give the name of the organ responsible for pumping blood around the body.

  The heart
• Overweight 68-year-old male smoker

  • Exercises less than 30 minutes per week
  • Experiences chest pains, out of breath, and feels exhausted on climbing stairs
• Atherosclerosis/fatty deposits in arteries


  Reducing blood supply to the heart
• Physical activity


  Increases the need for oxygen/blood
• Less oxygen available


  Causes breathlessness/exhaustion
• Poor circulation


  Means that less oxygen is transported/lower blood oxygen levels
• Cardiovascular disease


  Increases fluid on the lungs/pulmonary oedema/reduces blood oxygen levels
• Lower oxygen levels


  Causes tiredness/exhaustion (as oxygen is needed to provide energy)
• Climbing stairs


  Increases use of oxygen
• Lower oxygen levels


  Will be experienced as exhaustion and feeling out of breath