When a child is bom, what happens to its blood circulation ?

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Q: 180 (SSC/NA)
When a child is bom, what happens to its blood circulation ?

question_subject: 

Science

question_exam: 

SSC

stats: 

0,3,10,2,7,1,3

keywords: 

{'blood circulation': [2, 0, 0, 0], 'blood': [5, 0, 0, 1], 'flow': [0, 0, 1, 0], 'bom': [7, 0, 0, 0], 'atrium': [2, 0, 0, 0], 'child': [5, 2, 2, 8], 'heart': [1, 0, 0, 0]}

When a child is born, its blood circulation undergoes several changes. Option 1 is incorrect because the baby`s blood does not start flowing for the first time at birth. Option 2 is also incorrect because the flow of blood through the heart does not reverse after birth. Option 3 is incorrect as well because the blood continues to pass from one atrium to the other through the foramen ovale, a small opening between the two atria.

The correct answer is option 4. At birth, the baby`s blood carries waste products for the first time. During fetal development, the placenta provides oxygen and nutrients to the fetus and removes waste products. However, after birth, the baby`s lungs take over the role of oxygenation, and the blood begins to carry waste products, such as carbon dioxide, away from the cells.