duc'tus

See duct. d. arteriosus. A channel of communication between the main pulmonary artery of the fetus and the aorta, d. communis. A duct about 3 inches long, formed by the union of the cystic and hepatic d's, which carries the bile to the intestines, d. hem i thoracic us. An ascending branch of the thoracic duct given off high in the thorax and opening either ■ into the right lymphatic duct or close to the angle of union of the right subclavian and right internal jugular veins, d. hepatic us dexter. A duct which i ues from the right lobe of the liver and unites with the d. hepatic us sinister to form the hepatic duct. d. hepatic us medius. An occasional branch of the hepatic duct which conveys the bile from the quadrate lobe. d. hepatic us sinister. A d. which i ues from the left lobe of the liver and unites with the d. hepatic us dexter to form the hepatic duct. d. prostatic i. The ducts through which the secretion of the prostate pa es into the urethra, d. sacculo-utricular is. A small tube which connects the saccule of the internal ear with the utricle, d. venosus. The smaller, shorter, and posterior of the two branches into which the umbilical vein divides after entering the abdomen; it joins the left hepatic vein.