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The ligamentum venosum, also known as Arantius' ligament, [1] is the fibrous remnant of the ductus venosus of the fetal circulation. Usually, it is attached to the left branch of the portal vein within the porta hepatis. It may be continuous with the round ligament of liver. It is invested by the peritoneal folds of the lesser omentum within a ...
After it closes, the remnant is known as ligamentum venosum. If the ductus venosus fails to occlude after birth, it remains patent (open), and the individual is said to have a patent ductus venosus and thus an intrahepatic portosystemic shunt (PSS). [4] This condition is hereditary in some dog breeds (e.g. Irish Wolfhound).
The ligamentum arteriosum (arterial ligament), also known as Botallo's ligament, Harvey's ligament, and Botallo's duct, [1] is a small ligament attaching the aorta to the pulmonary artery. [ clarification needed ] It serves no function in adults but is the remnant of the ductus arteriosus formed within three weeks after birth .
It occupies the right hypochondrium, on its posterior surface by the ligamentum venosum for the cranial (upper) half and by the ligamentum teres hepatis (round ligament of liver) for the caudal (under) half. The ligamentum teres hepatis turns around the inferior margin of the liver to come out ventral in the falciform ligament.
The fetal circulatory system includes three shunts to divert blood from undeveloped and partially functioning organs, as well as blood supply to and from the placenta. In humans, the circulatory system is different before and after birth. The fetal circulation is composed of the placenta, umbilical blood vessels encapsulated by the umbilical ...
Posterior and inferior surfaces of the liver. (Coronary ligament labeled at center right.) Vertical disposition of the peritoneum. Main cavity, red; omental bursa, blue. The coronary ligament of the liver refers to parts of the peritoneal reflections [clarification needed] that hold the liver to the inferior surface of the diaphragm.
A ligament is the fibrous connective tissue that connects bones to other bones. It is also known as articular ligament, articular larua, [1] fibrous ligament, or true ligament. Other ligaments in the body include the: Peritoneal ligament: a fold of peritoneum or other membranes. Fetal remnant ligament: the remnants of a fetal tubular structure.
Ductus arteriosus. The fetal circulatory system, with the ductus arteriosus visible at upper right. 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.
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