baby hearts

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Across
  1. 4. a ______ septum is a condition known as transposition of the great vessels
  2. 5. divides into the aorta and pulmonary trunk
  3. 7. ostium ______ allows the initial passage of blood from the right to the left atrium
  4. 8. primary septum serves as a valve for the ______, which prevents the return of blood into the right atrium
  5. 9. the cardiovascular system is derived from the _________
  6. 11. ostium _____ replaces precursor partition; blood still passes from the RA to LA
  7. 12. the process of blood vessel development
Down
  1. 1. name of ductus arteriosus after closure
  2. 2. fusion of the primary and secondary septum results in the _____
  3. 3. T/F the transposition of the great vessels is compatible with life
  4. 6. spiral spiral that divides the ascending aorta and pulmonary trunk; ensures that blood from the right ventricle flows into the pulmonary trunk and blood from the left ventricle flows into the ascending aorta
  5. 10. angioblastic tissue