Podcast
Questions and Answers
Where does the pulmonary trunk arise from?
Where does the pulmonary trunk arise from?
- Right atrium
- Left ventricle
- Left atrium
- Right ventricle (correct)
What is the source of oxygenated blood that supplies the supporting tissues of the lungs?
What is the source of oxygenated blood that supplies the supporting tissues of the lungs?
- Renal arteries
- Systemic arteries (correct)
- Pulmonary arteries
- Coronary arteries
Where does the oxygenated bronchial arterial blood empty after passing through the supporting tissues of the lungs?
Where does the oxygenated bronchial arterial blood empty after passing through the supporting tissues of the lungs?
- Pulmonary arteries
- Right atrium
- Pulmonary veins (correct)
- Left atrium
What is the function of the capillary plexus in pulmonary circulation?
What is the function of the capillary plexus in pulmonary circulation?
What role do the pulmonary veins play in the circulation of oxygenated blood?
What role do the pulmonary veins play in the circulation of oxygenated blood?
Where does the umbilical vein transport blood from the placenta to the fetus?
Where does the umbilical vein transport blood from the placenta to the fetus?
What happens to the blood that enters the fetal right atrium?
What happens to the blood that enters the fetal right atrium?
Why does blood largely bypass the fetal lungs?
Why does blood largely bypass the fetal lungs?
What happens to the blood in the pulmonary trunk in fetal circulation?
What happens to the blood in the pulmonary trunk in fetal circulation?
What contributes to the remarkable resistance to hypoxia in fetal and newborn mammals?
What contributes to the remarkable resistance to hypoxia in fetal and newborn mammals?
Which of the following is responsible for the most significant alterations in pulmonary blood flow by producing vasoconstriction?
Which of the following is responsible for the most significant alterations in pulmonary blood flow by producing vasoconstriction?
What plays an important role in up-regulating uterine blood flow during pregnancy?
What plays an important role in up-regulating uterine blood flow during pregnancy?
Which circulation starts with the maternal blood flow into the intervillous space through decidual spiral arteries?
Which circulation starts with the maternal blood flow into the intervillous space through decidual spiral arteries?
What do J receptors adjacent to pulmonary capillaries stimulate when activated?
What do J receptors adjacent to pulmonary capillaries stimulate when activated?
What leads to reflex dilatation of pulmonary vessels?
What leads to reflex dilatation of pulmonary vessels?
What contributes to the expansion of the infant's lungs during the first gasps?
What contributes to the expansion of the infant's lungs during the first gasps?
What effect does the sucking action of the first breath have on blood circulation?
What effect does the sucking action of the first breath have on blood circulation?
What happens to the pulmonary vascular resistance once the infant's lungs are expanded?
What happens to the pulmonary vascular resistance once the infant's lungs are expanded?
What causes the closure of the foramen ovale in the infant's heart?
What causes the closure of the foramen ovale in the infant's heart?
When does the ductus arteriosus undergo permanent anatomic closure in infants?
When does the ductus arteriosus undergo permanent anatomic closure in infants?
