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fetal circulation

quiz prep

QuestionAnswer
the umbilical cord consist of 1 vein & 2 arteries
foramen ovale is functional when 2 hr
foramen ovale is permanently closed when 3 months
ductus arteriosus is functional when 15 hr
ductus arteriosus is permanently closed when 3 weeks
ductus venosus is functional when cord is cut
ductus venosus is permanently closed when 1 wk
what becomes ligaments when permanently closed ductus venosus and ductus arteriosus
what is the function of the whartons jelly keep the 3 placenta blood vessels separated to improve flow; cover and cushions cord vessels
most fetal blood bypasses circulation to the lungs by way of the bypasses by the foramen ovale
the fetal circulatory structure that carries blood with the lowest oxygen saturation is the umbilical artery
fetal waste products are disposed of by the placenta
adult artery carries oxygenated blood away from the heart
fetal artery carries deoxygenated blood away heart
adult veins carries deoxygenated blood to the heart
fetal veins carries oxygenated blood to the heart
adult gas exchange occurs in the lungs
fetal gas exchange occurs in the placenta
ductus venosus diverts some of the blood away from the liver as it returns from the placenta
foramen ovale diverts most of the blood from RA - LA instead of circling it to the lungs
ductus arteriosus diverts most of blood pulmonary artery - aorta
what are the fetal circulatory shunts foramen ovale, ductus arteriosus, ductus venosus
what carries blood containing waste products to the placenta returned to placenta through umbilical arteries
what circulation starts in the placenta fetal circulation
after the placenta where do fetal circulation go 1 umbilical vein
after the umbilical vein where do fetal circulation go ductus venosus
after the ductus venosus where do fetal circulation go IFC in fetal (don't need to know)
after the IFC where do fetal circulation go RA in fetal (don't need to know)
after the RA where do fetal circulation go foramen ovale
after the foramen ovale where do fetal circulation go LA in fetal (don't need to know)
after the LA where do fetal circulation go LV in fetal (don't need to know)
after the LV where do fetal circulation go aorta in fetal (don't need to know)
after the aorta where do fetal circulation go upper extremities (don't need to know)
after the upper extremities where do fetal circulation go SVC in fetal (don't need to know)
after the SVC where do fetal circulation go RV in fetal (don't need to know)
after the RV where do fetal circulation go pulmonary arteries in fetal (don't need to know)
after the pulmonary arteries where do fetal circulation go ductus arteriosus
after the ductus arteriosus where do fetal circulation go back to the aorta in fetal
after it goes back to the aorta where do fetal circulation go trunk and lower extremities (don't need to know)
after the trunk & lower extremities where do fetal circulation go hypogastric arteries (don't need to know)
after the hyposgastric arteries where do fetal circulation go 2 umbilical arteries in which gets blood back to the placenta
I & SVC RA
RA tricuspid valve
tricuspid valve RV
RV pulmonic valve
pulmonic valve pulmonary artery
pulmonary artery lungs
lungs pulmonary vein
pulmonary vein LA
LA mitral valve
mitral valve LV
LV aortic valve
aortic valve ascending and descending aorta
ascending and descending aorta body
don't forget to look at P 17 #13 picture
Created by: michelleeppes04
 

 



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