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5 Cards in this Set

  • Front
  • Back
Because the embryonic lungs are not functional, what happens to the blood?
shunted away from the lungs to the rest of teh body
How is blood shunted from the right atrium to the left atrium in a developing embryo?
through the foramen ovale and pushing a flap of tissue to the left called the septum primum
what is the septum primum?
In embryonic pericardial circulation, it acts like a one way flutter valve that separates the left and right atrium since blood does not need to go to the lungs.
When an infant takes its first breath, what should close?
septum primam, permanently and seal shut forming the fossa ovalis.
What is the term for when the fossa ovalis fails to close properly?
patent foramen ovale, perforated fossa ovalis, or atrial septal defect