HCP 8

Question 1

Fetal blood flow

Answer 1

umbilical vein -> ductus venous -> IVC -> RA -> RV or LA via foramen ovale -> RV -> pulmonary trunk or aorta via ductus arteriosus -> lungs -> pulmonary veins -> LA -> LV -> aorta -> systemic circulation -> umbilical arteries -> placenta

Question 2

TOF

Answer 2

1. VSD 2. subvalvular pulmonic stenosis (pulmonary infundibular stenosis) 3. overriding aorta 4. right ventricular hypertrophy

Question 3

membranous IV septum components

Answer 3

R and L bulbar ridges, R and L truncoconal ridges, AV cushions?