ductus

listen to the pronunciation of ductus
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a duct, tube or canal in the body
the number of strokes that make up a written letter, and the direction, sequence and speed in which they are written
{i} pipe, tube
ductus arteriosus
a shunt that connects the pulmonary artery to the aorta during fetal development
ductus deferens
(Anatomi) A duct that carries spermatozoa from the epididymis to the ejaculatory duct, vas deferens
ductus arteriosus
Channel between the pulmonary artery and the aorta in the fetus, which bypasses the lungs to distribute oxygen received through the placenta from the mother's blood. It normally closes once the baby is born and the lungs inflate, separating the pulmonary and systemic circulations. Closure before birth causes circulatory problems. If the ductus stays open after birth (patent ductus arteriosus, more common in premature births), oxygenated and deoxygenated blood mix. Alone, this may not be serious; in some heart malformations it is even necessary for life
ductus arteriosus
a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth
musculus sphincter ductus choledochi
the smooth muscle sphincter of the common bile duct
musculus sphincter ductus pancreatici
the smooth muscle sphincter of the main pancreatic duct
patent ductus arteriosus
a ductus arteriosus that failed to close at birth; may require surgical correction
ductus
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