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The Blood Of The Deoxygenated Blood

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The fetus obtains blood(with or without oxygen) from the mother ' placenta via two arteries and one vein, referred to them as the umbilical arteries and vein. The deoxygenated blood travels from fetus 's right atrium into the right ventricle, then bypassing the fetus 's lungs into the ductus arteriosus. The ductus arteriosus sends the deoxygenated blood in the lower half of the fetal body, and at the same time deoxygenated blood also comes from the ascending aorta. This allows for the deoxygenated blood to leave the fetus through the umbilical arteries and get back to the placenta to pick up oxygen. After picking up oxygen from the mother 's placenta and through the umbilical vein, the oxygenated bloods passes through the fetal liver into the right side of the heart. Inside the heart, the oxygenated blood enters the right atrium into the left atrium, passing through a hole that closes as the baby is born, called the patent foreman ovale. This opening, as mentioned earlier, leads to the left atrium from the right atrium where oxygenated blood has arrived from the placenta via the umbilical vein. After the left atrium, comes the left ventricle where oxygenated blood is pushed out through the aorta into the brain where most oxygen is needed. After the distribution of oxygenated blood throughout the fetal body, deoxygenated blood enters the right atrium and the process starts all over, starting at the right atrium, then to the right ventricle and through the ductus

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