Blood Flow and the Heart

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Across
  1. 4. Receives blood from the pulmonary artery
  2. 6. Muscular middle layer of the heart wall
  3. 9. Receives blood from the right atrium
  4. 10. Receives deoxygenated blood from the body through the vena cava
  5. 12. Fluid-filled sac that surrounds the heart wall
  6. 14. Blood enters the heart from the body through the
  7. 15. Brings oxygenated blood back to the heart from the lungs
Down
  1. 1. Valve that separates the left atrium from the left ventricle
  2. 2. Valve that separates the left ventricle from the aorta
  3. 3. Deoxygenated blood flows from the heart into the lungs through the
  4. 5. Receives blood from the left atrium
  5. 7. Valve between the right atrium and right ventricle
  6. 8. Blood flows from the heart into the rest of the body through the
  7. 11. Valve that prevents back flow between the right ventricle and the pulmonary vein
  8. 13. Innermost layer of the heart that lines the chambers