Journey of blood

• 1. Left ventricle takes oxygenated blood in the aorta
  2. Aorta takes oxygenated blood to the body where oxygen is taken by the respiring cells
  3. Deoxygenated blood reenters the heart through the vena cava
• 4. Deoxygenated blood enters through the vena cava into the right atrium

  5. Deoxygenated blood moves through the atrioventricular valves into the right ventricle

  6. Right ventricle pushes deoxygenated blood into pulmonary artery through the semilunar valves
• 7. Pulmonary artery takes blood into the lungs where it becomes oxygenated

  8. Pulmonary vein bring oxygenated blood into the left atrium

  9. Blood moves from the left atrium into the left ventricle through the atrioventricular valves