How do the babys respiration and circulation change when the baby?

Answer 1

When a baby is born, their respiration and circulation undergo significant changes. The transition from fetal to neonatal life involves the initiation of breathing, which allows oxygen to enter the lungs and blood to be oxygenated. Simultaneously, the closure of fetal shunts, such as the foramen ovale and ductus arteriosus, redirects blood flow to the lungs for oxygenation instead of relying on the placenta. This shift establishes independent respiratory and circulatory functions necessary for life outside the womb.