Adult circulation vs fetal circulation

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Learn more about Scribd Membership Bestsellers. Read Free For 30 Days. Much more than documents. Discover everything Scribd has to offer, including books and audiobooks from major publishers. Start Free Trial Cancel anytime. Description: circulation of fetal and adult heart and its changes.
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Fetal Circulation

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adult circulation vs. fetal circulation? | Yahoo Answers

The umbilical vein brings oxygenated and nutrient rich blood from the placenta into the right atrium. From there, it travels through the Foramen Ovale, which is a one way valve between the right atrium and the left atrium. This essentially short circuits the lungs. Return blood back to the placenta is via the umbilical artery. At birth, when the infant starts breathing, the pressure differential between the left atrium and the right atrium increases, causing the Foramen Ovale to close, removing the short circuit. Now, blood has the full path from right atrium, to right ventricle, to lungs, to left atrium, to left ventricle, to the body, and repeating.
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adult circulation vs. fetal circulation?

The blood that flows through the fetus is actually more complicated than after the baby is born normal heart. The placenta accepts the blood without oxygen from the fetus through blood vessels that leave the fetus through the umbilical cord umbilical arteries, there are two of them. When blood goes through the placenta it picks up oxygen.
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This preview shows page 1 - 19 out of 19 pages. Subscribe to view the full document. Unformatted text preview: ductus arteriosus which connects the pulmonary trunk to the aorta. The partially oxygenated blood then travels from the aorta to the developing organs of the fetus.
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