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NBME CBSE REAL EXAM QUESTIONS AND ANSWERS LATEST UPDATE 100% 2023-2024

1. Bulbus cordis: Smooth parts (outflow tract) of left and right ventricles
2. endocardial cushions: Atrial septum, membranous interventricular septum; AV and semilunar valves

neural crest
3. left horn of the sinus venosus: coronary sinus
4. posterior, sub cardinal, and supra cardinal veins: IVC
5. Right common cardinal vein and right anterior cardinal vein: SVC
6. Right horn of sinus venosus: Smooth part of right atrium (sinus venarum)
7. Patent foramen ovale: failure of septum primum and septum secundum to fuse after birth
8. Transposition of the great vessels Tetralogy of Fallot
Persistent truncus arteriosus: Conotruncal abnormalities associated with failure of neural crest cells to migrate
9. ductus venosus: connects the umbilical vein to the inferior vena cava, bypass- ing the liver

becomes ligamentum venosum
10. phrenic nerve: innervates the diaphragm and pericardium
11. S3 heart sound: Increased ventricular filling pressure (e.g., mitral regurgita- tion, HF), common in dilated ventricles

normal in kids and pregnant women