| ductus endolymphaticus | Duct connecting the endolymphatic sac with the membranous labyrinth. (12 Dec 1998) |
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| ductus epididymidis | A convoluted tube into which the efferent ductules open and which itself terminates in the ductus deferens. Synonym: ductus epididymidis. (05 Mar 2000) |
| ductus epoophori longitudinalis | A rudimentary vestige of the mesonephric duct in the female into which the tubules of the epoophoron open; it is located in the broad ligament of the uterus, parallel with the lateral part of the uterine tube, and in the lateral walls of the cervix and vagina. Synonym: ductus epoophori longitudinalis, ductus deferens vestigialis, Gartner's canal, Gartner's duct. (05 Mar 2000) |
| ductus excretorius | A duct carrying the secretion from a gland or a fluid from any reservoir. Synonym: ductus excretorius. (05 Mar 2000) |
| ductus excretorius vesiculae seminalis | The passage leading from a seminal vesicle to the ejaculatory duct. Synonym: ductus excretorius vesiculae seminalis. (05 Mar 2000) |
| ductus glandulae bulbourethralis | The long slender duct on each side passing down through the inferior fascia of the urogenital diaphragm to enter the bulb of the penis and course forward 2 or 3 cm before terminating in the urethra. Synonym: ductus glandulae bulbourethralis. (05 Mar 2000) |
| ductus hemithoracicus | An accessory thoracic duct, usually emptying into the thoracic duct but sometimes discharging independently into the right subclavian vein. Synonym: ductus hemithoracicus. (05 Mar 2000) |
| ductus hepaticus communis | The part of the biliary duct system that is formed by the confluence of right and left hepatic ducts. at the porta hepatis it is joined by the cystic duct to become the common bile duct. Synonym: ductus hepaticus communis, hepatocystic duct. (05 Mar 2000) |
| ductus hepaticus dexter | The duct that transmits bile to the common hepatic duct from the right half of the liver and the right part of the caudate lobe. Synonym: ductus hepaticus dexter. (05 Mar 2000) |
| ductus hepaticus sinister | The duct that drains bile from the left half of the liver, including the quadrate lobe and the left part of the caudate lobe. Synonym: ductus hepaticus sinister. (05 Mar 2000) |
| ductus incisivus | A rudimentary duct, or protrusion of the mucous membrane into the incisive canal, on either side of the anterior extremity of the nasal crest. Synonym: ductus incisivus. (05 Mar 2000) |
| ductus lactiferi | The ducts, numbering 15 or 20, which drain the lobes of the mammary gland; they open at the nipple. Synonym: ductus lactiferi, canalicular ducts, galactophore, galactophorous canals, galactophorous ducts, mamillary ducts, mammary ducts, milk ducts, tubuli galactophori, tubuli lactiferi. (05 Mar 2000) |
| ductus lingualis | A pit on the upper surface of the tongue at the apex of the sulcus terminalis; it marks the point of origin of the ductus thyroglossus of the embryo; known more commonly as the foramen caecum. (05 Mar 2000) |
| ductus lobi caudati dexter | The bile duct from the right half of the caudate lobe, a tributary to the right hepatic duct. Synonym: ductus lobi caudati dexter. (05 Mar 2000) |
| ductus lobi caudati sinister | A tributary to the left hepatic duct draining bile from the left half of the caudate lobe. Synonym: ductus lobi caudati sinister. (05 Mar 2000) |