Development of cardiovascular disease

• What is the primary function of the circulatory system in humans?

  To transport substances
• What are the main components of the circulatory system?

  • The heart
  • Blood vessels
  • Blood
• What is the heart described as?

  A muscular organ that pumps blood around the body
• Why does the heart need oxygen?

  To contract and perform its pumping function
• What do the coronary arteries supply to the heart muscle?

  Oxygen and glucose
• What can cause the coronary arteries to become blocked?

  A build-up of fatty material from 'bad' cholesterol
• What happens when a blockage in the coronary arteries reduces oxygen supply to the heart muscle?

  A person may develop chest pain and potentially a heart attack
• What is the consequence of untreated coronary artery blockage?

  Damage to or death of the heart muscle
• What is the result of a heart attack?

  Part of the heart muscle, or the whole heart, will die
• What are the symptoms of reduced oxygen supply to the heart muscle?

  • Chest pain
  • Potential heart attack
• What are the potential treatments for cardiovascular disease?

  • Lifestyle changes (diet, exercise)
  • Medications
  • Surgical procedures (e.g., heart transplants)