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Temporary Structures of the Heart and Major Arteries Quiz

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Temporary Structures of the Heart and Major Arteries Quiz

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Questions and Answers

Which structure shunts highly oxygenated blood from the right atrium to the left atrium?

Ductus Venosus

Foramen Ovale (correct)

Umbilical Cord (AVA)

Placenta

What is the function of the Ductus Arteriosus in fetal circulation?

Protects lungs against circulatory overload (correct)

Carries mostly highly oxygenated blood

Connects the umbilical vein to the IVC

Carries mostly deoxygenated blood

What carries oxygenated blood towards the heart in fetal circulation?

Foramen Ovale

Umbilical arteries (correct)

Pulmonary artery

Ductus Venosus

What is the function of the umbilical vein in fetal circulation?

Carries oxygenated blood towards the heart Signup and view all the answers

Which artery carries mostly moderately oxygen saturated blood in fetal circulation?

Ductus Arteriosus Signup and view all the answers

What does the umbilical cord connect the fetus to in fetal circulation?

Placenta Signup and view all the answers

What is the role of the placenta in fetal circulation?

Provides nutrition and oxygen to the fetus Signup and view all the answers

What is the main function of the umbilical arteries in fetal circulation?

Carry deoxygenated blood away from the heart towards the placenta Signup and view all the answers

What is a significant difference between fetal and adult circulation?

Umbilical arteries carry deoxygenated blood in fetal circulation but carry oxygenated blood in adult circulation. Signup and view all the answers

What happens to waste products and carbon dioxide from the fetus in fetal circulation?

They are sent back through the placenta to be removed from mother's circulation. Signup and view all the answers