plural of thoracic duct

(anatomy) A major vessel of the lymphatic system that originates in the abdomen and drains into the blood circulation at the commencement of the left brachiocephalic vein.

(anatomy) Any of a branching system of ducts that carry milk from the lobules of the mammary gland to the nipple

plural of cystic duct

(anatomy) A short duct that leads from the gallbladder and unites with the common hepatic duct to form the common bile duct.

plural of milk duct

(anatomy) A duct that receives and concentrates urine from the distal convoluted tubule of nephrons and discharges it into the calyces of the renal pelvis.

plural of collecting duct

(anatomy) The spirally arranged canal in the bony canal of the cochlea that contains the organ of Corti, is triangular in cross section, and is bounded by the vestibular membrane above, by the periosteum-lined wall of the cochlea laterally, and by the basilar membrane below.

(anatomy) A narrow tube connecting the utricle to the saccule in the membranous labyrinth of the ear.