Cardiovascular puzzle

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Across
  1. 2. Opening between the atria that allows mixing of blood in TAPVC
  2. 4. Bluish skin discoloration caused by low oxygen levels
  3. 10. Imaging test commonly used to diagnose congenital heart defects
  4. 11. Process of adding oxygen to blood in the lungs
  5. 12. Condition present at birth affecting heart structure
  6. 13. Blood flow between the heart and lungs
  7. 14. Abnormal sound heard during cardiac auscultation
Down
  1. 1. Difficulty breathing often seen in infants with cardiac defects
  2. 3. Blood vessels that normally carry oxygenated blood from lungs to the left atrium
  3. 5. Complication where pulmonary venous flow becomes blocked
  4. 6. Primary treatment required to correct TAPVC
  5. 7. Most common age group where TAPVC is diagnosed
  6. 8. Heart chamber receiving abnormal pulmonary venous return
  7. 9. Congenital heart defect where pulmonary veins connect to the right atrium instead of the left atrium