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Questions and Answers
What is the function of the umbilical arteries in fetal circulation?
What is the function of the umbilical arteries in fetal circulation?
- Directly connect the pulmonary artery to the aorta
- Return oxygenated blood from the placenta to the fetus
- Carry deoxygenated blood from the fetus to the placenta (correct)
- Supply oxygen to the fetal lungs
What is the purpose of the foramen ovale in the fetal heart?
What is the purpose of the foramen ovale in the fetal heart?
- Allow blood to bypass fetal lungs and enter systemic circulation (correct)
- Connect the aorta to the pulmonary artery
- Regulate blood flow to the liver
- Deliver nutrients from the placenta to the fetus
Where does the ductus arteriosus connect in the fetal heart?
Where does the ductus arteriosus connect in the fetal heart?
- Aorta to systemic vessels
- Right atria to the left atria
- Placenta to fetus
- Pulmonary artery to the aorta (correct)
What is the role of the ductus arteriosus in fetal circulation?
What is the role of the ductus arteriosus in fetal circulation?
Why is it important for fetal blood to bypass non-functional lungs?
Why is it important for fetal blood to bypass non-functional lungs?
What is the initial structure that forms from the fusion of paired endothelial strands during early embryonic development?
What is the initial structure that forms from the fusion of paired endothelial strands during early embryonic development?
Which structure in the embryonic heart serves as a collecting chamber for deoxygenated blood returning from the body?
Which structure in the embryonic heart serves as a collecting chamber for deoxygenated blood returning from the body?
During fetal development, what plays a crucial role in the exchange of nutrients and oxygen between the fetus and the placenta?
During fetal development, what plays a crucial role in the exchange of nutrients and oxygen between the fetus and the placenta?
What region of the embryonic heart tube contributes to the formation of the outflow tracts of the ventricles and the aorta and pulmonary arteries?
What region of the embryonic heart tube contributes to the formation of the outflow tracts of the ventricles and the aorta and pulmonary arteries?
Which structure gives rise to the left and right atria as the embryonic heart develops?
Which structure gives rise to the left and right atria as the embryonic heart develops?
What undergoes extensive remodeling and septation to contribute to the formation of outflow tracts during embryonic development?
What undergoes extensive remodeling and septation to contribute to the formation of outflow tracts during embryonic development?
Which structure serves as a collecting chamber for deoxygenated blood returning from the body before it enters the developing heart?
Which structure serves as a collecting chamber for deoxygenated blood returning from the body before it enters the developing heart?
What region of the embryonic heart tube contributes to the formation of the outflow tracts of the ventricles and the aorta and pulmonary arteries?
What region of the embryonic heart tube contributes to the formation of the outflow tracts of the ventricles and the aorta and pulmonary arteries?
What happens to the single atrium during embryonic heart development?
What happens to the single atrium during embryonic heart development?
Which structure in the developing heart initially gives rise to a single ventricle?
Which structure in the developing heart initially gives rise to a single ventricle?
What role do the umbilical arteries and vein play during fetal development?
What role do the umbilical arteries and vein play during fetal development?
Which part of the embryonic heart tube elongates and undergoes looping to give rise to the ventricles?
Which part of the embryonic heart tube elongates and undergoes looping to give rise to the ventricles?
What is the fate of the bulbus cordis during embryonic heart development?
What is the fate of the bulbus cordis during embryonic heart development?
What is the primary function of the umbilical arteries during fetal development?
What is the primary function of the umbilical arteries during fetal development?
What is the primary function of the foramen ovale in the fetal heart?
What is the primary function of the foramen ovale in the fetal heart?
What is the primary function of the ductus arteriosus in the fetal heart?
What is the primary function of the ductus arteriosus in the fetal heart?
What is the primary reason for the adaptation of the foramen ovale and ductus arteriosus in the fetal heart?
What is the primary reason for the adaptation of the foramen ovale and ductus arteriosus in the fetal heart?
Which of the following statements accurately describes the role of the umbilical vein during fetal development?
Which of the following statements accurately describes the role of the umbilical vein during fetal development?
Which of the following statements accurately describes the role of the placenta during fetal development?
Which of the following statements accurately describes the role of the placenta during fetal development?
Which of the following statements accurately describes the fetal circulation during development?
Which of the following statements accurately describes the fetal circulation during development?
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