Cardiovascular system

• What are the three main parts of the cardiovascular system?

  The heart, blood vessels, and blood
• What is the approximate size of the heart?

  About the size of a clenched fist
• Where is the heart located in the body?

  In the middle of the chest, slightly left
• How is the heart divided?

  Into two halves: right and left
• What does the right side of the heart do?

  Pumps deoxygenated blood to the lungs
• What is the function of the left side of the heart?

  Pumps oxygenated blood around the body
• What are the two connected chambers of each side of the heart?

  Atrium and ventricle
• What happens in the atria of the heart?

  Blood collects when it enters the heart
• What is the role of the ventricles?

  They pump blood out of the heart
• What separates the right and left sides of the heart?

  The septum
• Where is the tricuspid valve located?

  Between the right atrium and right ventricle
• What causes the tricuspid valve to open?

  Build-up of pressure in the right atrium
• Where is the bicuspid valve located?

  Between the left atrium and left ventricle
• What causes the bicuspid valve to open?

  Build-up of pressure in the left atrium
• What is the function of the semilunar valves?

  They stop the backflow of blood into the heart
• Where is a semilunar valve located?

  Where the aorta leaves the left ventricle
• What is the largest artery in the body?

  The aorta
• What does the aorta carry?

  Oxygenated blood away from the heart
• What is the largest vein in the body?

  The vena cava
• What does the vena cava carry?

  Deoxygenated blood back to the heart
• What does the pulmonary artery carry?

  Deoxygenated blood to the lungs
• What does the pulmonary vein return to the heart?

  Oxygenated blood from the lungs
• What do arteries carry away from the heart?

  Oxygenated blood (except pulmonary artery)
• What is the main artery in the cardiovascular system?

  The aorta
• What is the main vein in the cardiovascular system?

  The vena cava