Ch 2 Fetal Gas Exchange and Circulation
Terms in this set (15)
What does the fetus depend on for gas exchange?
Do the fetal and maternal blood touch at all?
What blood vessels are inside the umbilical cord?
2 small arteries
1 large vein
What protects the blood vessels of the umbilical cord and prevents kinking?
What is the first organ formed in a fetus?
How long does it take for the heart to be fully functional?
Which of mom's organs perform the most work for the baby?
lungs and liver
Is fetal circulation different from after birth circulation?
What are the 3 fetal shunts?
What does the ductus venosus bypass?
What does the foramen ovale shunt?
the right and left atria
What does the ductus arteriosus shunt blood away from and where does it direct it?
away from the lungs and to the aorta
What percent of the ductus closes within a day?
What percent of the ductus closes witing 2 days?
What percent of the ductus closes within 4 days?
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