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5 Cards in this Set
- Front
- Back
Because the embryonic lungs are not functional, what happens to the blood?
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shunted away from the lungs to the rest of teh body
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How is blood shunted from the right atrium to the left atrium in a developing embryo?
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through the foramen ovale and pushing a flap of tissue to the left called the septum primum
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what is the septum primum?
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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.
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When an infant takes its first breath, what should close?
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septum primam, permanently and seal shut forming the fossa ovalis.
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What is the term for when the fossa ovalis fails to close properly?
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patent foramen ovale, perforated fossa ovalis, or atrial septal defect
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