LP7185-4

Ductus arteriosus

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Descriptions

In the developing fetus, the ductus arteriosus (DA) is a shunt connecting the pulmonary artery to the aortic arch that allows most of the blood from the right ventricle to bypass the fetus' fluid-filled lungs. During fetal development, this shunt protects the lungs from being overworked and allows the right ventricle to strengthen. There are two other fetal shunts, the ductus venosus and the foramen ovale. The ductus arteriosus is sometimes called the ductus Botalli, after Leonardo Botallo, although the discovery should have been attributed to Giulio Cesare Aranzi, to whom (less commonly) the ductus venosus is named. Closure at birth:When the newborn takes its very first breath, pulmonary vascular resistance falls due to physical opening of the pulmonary capillaries and attenuation of intrauterine hypoxic pulmonary vasoconstriction. Decreased pulmonary vascular resistance increases pulmonary blood flow while pulmonary vascular pressure falls below aortic pressure. Copyright Text is available under the Creative Commons Attribution/Share-Alike License. See http://creativecommons.org/licenses/by-sa/3.0/ for details. Source: Wikipedia, Ductus arteriosus (Wikipedia)

A fetal blood vessel connecting the pulmonary artery with the descending aorta. Source: National Library of Medicine, MeSH 2006

Basic Part Properties

Part Name

Ductus arteriosus

Part Display Name

Ductus arteriosus

Part Type

System (Describes the name of the system (sample) type)

Created On

2000-05-03

Construct for LOINC Short Name

DA

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