What is the order in which fetal blood would pass through the following structures after leaving the heart?
1. pulmonary trunk
2. foramen ovale
3. umbilical arteries
4. umbilical vein
5. ductus venosus
6. right atrium
A) 1, 4, 2, 3, 6, 5
B) 4, 3, 1, 2, 6, 5
C) 1, 3, 4, 5, 6, 2
D) 6, 3, 1, 4, 2, 5
E) 5, 4, 3, 2, 1, 6
Answer: C) 1, 3, 4, 5, 6, 2
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