Podcast
Questions and Answers
What is the most common type of atrial septal defect (ASD)?
What is the most common type of atrial septal defect (ASD)?
- Closure of Ductus Arteriosus
- Ostium secundum defects (correct)
- Ventricular septal defect
- Patent ductus arteriosus (PDA)
What happens during anatomical closure of the ductus arteriosus postnatally?
What happens during anatomical closure of the ductus arteriosus postnatally?
- A 'machine-like' murmur is heard
- Blood flows from right to left
- Bradykinin is released
- Smooth muscle contracts (correct)
What is the main cause of atrial septal defects (ASDs) involving the failure of fusion between septum primum and secondum?
What is the main cause of atrial septal defects (ASDs) involving the failure of fusion between septum primum and secondum?
- Excessive resorption of septum primum (correct)
- Closure of Ductus Arteriosus
- Closure of ductus arteriosus
- Underdevelopment of septum secundum
Which part of the interventricular septum is formed by the medial walls of expanding ventricles?
Which part of the interventricular septum is formed by the medial walls of expanding ventricles?
What characterizes a 'machine-like' murmur in a patient with pulmonary hypertension?
What characterizes a 'machine-like' murmur in a patient with pulmonary hypertension?
Which type of closure occurs prenatally in the ductus arteriosus?
Which type of closure occurs prenatally in the ductus arteriosus?
What closes the interventricular foramen superiorly in the interventricular septum?
What closes the interventricular foramen superiorly in the interventricular septum?
What is the function of the ductus arteriosus in foetal circulation?
What is the function of the ductus arteriosus in foetal circulation?
Which structure grows from the roof of the atrium into the lumen and forms ostium primum?
Which structure grows from the roof of the atrium into the lumen and forms ostium primum?
What happens when the ostium primum fails to close properly above the atrioventricular valves?
What happens when the ostium primum fails to close properly above the atrioventricular valves?
What is the risk associated with an ostium primum defect just above the atrioventricular valves?
What is the risk associated with an ostium primum defect just above the atrioventricular valves?
During post-natal circulation, what happens to the pulmonary vascular resistance (PVR) and arterial pressures?
During post-natal circulation, what happens to the pulmonary vascular resistance (PVR) and arterial pressures?
What is a characteristic of acyanotic heart diseases?
What is a characteristic of acyanotic heart diseases?
