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  2. Ductus arteriosus - Wikipedia

    en.wikipedia.org/wiki/Ductus_arteriosus

    The ductus arteriosus, also called the ductus Botalli, named after the Italian physiologist Leonardo Botallo, is a blood vessel in the developing fetus connecting the trunk of the pulmonary artery to the proximal descending aorta. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs.

  3. Patent ductus arteriosus - Wikipedia

    en.wikipedia.org/wiki/Patent_ductus_arteriosus

    Patent ductus arteriosus (PDA) is a medical condition in which the ductus arteriosus fails to close after birth: this allows a portion of oxygenated blood from the left heart to flow back to the lungs from the aorta, which has a higher blood pressure, to the pulmonary artery, which has a lower blood pressure.

  4. Wikipedia : Osmosis/Patent ductus arteriosus

    en.wikipedia.org/.../Patent_ductus_arteriosus

    If that ductus arteriosus doesn’t close off, then the baby is left with a patent ductus arteriosus, and this condition accounts for about 10% of all congenital heart defects, of which the vast majority, about 90%, are isolated heart defects, meaning there aren’t any additional congenital defects.

  5. Fetal circulation - Wikipedia

    en.wikipedia.org/wiki/Fetal_circulation

    Because the aorta has lower pressure than the pulmonary artery, most of the blood flows across the ductus arteriosus away from the lungs. [1] Once the blood goes through the ductus arteriosus, it mixes with the blood from the aorta. This results in mixed blood oxygen saturation that supplies most of the structures of the lower half of the fetal ...

  6. Aortic arches - Wikipedia

    en.wikipedia.org/wiki/Aortic_arches

    The ductus arteriosus connects at a junction point that has a low pressure zone (commonly called Bernoulli's principle) created by the inferior curvature (inner radius) of the artery. This low pressure region allows the artery to receive ( siphon ) the blood flow from the pulmonary artery which is under a higher pressure.

  7. Ligamentum arteriosum - Wikipedia

    en.wikipedia.org/wiki/Ligamentum_arteriosum

    If the ductus arteriosus fails to close after birth, a condition known as patent ductus arteriosus can develop. This is a fairly common birth defect. This is a fairly common birth defect. Sufferers may have operations that leave them with no ligamentum arteriosum.

  8. Coarctation of the aorta - Wikipedia

    en.wikipedia.org/wiki/Coarctation_of_the_aorta

    Ductal coarctation: The narrowing occurs at the insertion of the ductus arteriosus. This kind usually appears when the ductus arteriosus closes. Postductal coarctation: The narrowing is distal to the insertion of the ductus arteriosus. Even with an open ductus arteriosus, blood flow to the lower body can be impaired. This type is most common in ...

  9. Continuous murmurs - Wikipedia

    en.wikipedia.org/wiki/Continuous_murmurs

    Patent ductus arteriosus. Patent ductus arteriosus (PDA) is an abnormal connection between the aorta and the pulmonary artery, which normally should be closed in infancy. Since aortic pressure is higher than pulmonary pressure, a continuous murmur occurs. This murmur is often described as a machinery murmur, or Gibson's murmur. [2]