DUCT

larger of the sublingual ducts. Bellini’s d’s, the excretory ducts of the kidneys. biliary d’s comprise the hepatic d.. from the liver to the common bile-duct; the cystic d., from the gall-bladder to the common bile-duct, or duct us commu’nis choled’och us, which conveys the bile to the duodenum. Botalli’s d., the duct us arteriosus. canalicular d's, any one of the smaller galactophorous ducts of the breast. cloacal d. See Reichel’s cdoacal d. cochlear d., the cochlear canal. common bile-d. See under biliary d's. cowperian d., the efferent duct of Cowper's glands. d’s of Cuvier, two short venous trunks in the fetus opening into the auricle of the heart: the right one becomes the superior vena cava. cyst hepatic d., the hep a to cystic duct. cystic d., the excretory duct of the gallbladder, extending to the duct us communis choledochus. deferent d., the vas deferens. definite d’s, the straight’ milk-ducts of a nipple. efferent d., the duct which gives outlet to a glandular secretion. ejaculatory d., the canal which pa es from the vas deferens and seminal vesicle. conveying the semen to the urethra. endolymphatic d., a tubular proce from the sacculus endolymphatic us, through the aqueduct of the vestibule, into the membranous labyrinth of the ear. excretory d., one which gives vent to an excretion. galactophorous d’s, a set of from fifteen to twenty milk-ducts in the lobes of the mammary glands and in the nipples. galld., any one of the biliary ducts. Gartner's d., a straight canal extending from the parovarium through the broad ligament to the vagina. serian d., the duct of Miiller. genital d., the nital canal. guttural d., the eustachian tube. emithoracic d., a lymphatic duct which generally is a branch of the thoracic duct, but sometimes goes direct to the junction of the right internal jugular and right subclavian veins. Hensen’s 4. Same as canal of Hensen. hepatic d., a duct formed by the union of the right and left hepatic ducts and pa ing to the common bile-duct. hepatic d., left, a branch of the hepatic duct arising in the left lobe of the liver. hepatic d., middle, an occasional branch of the hepatic duct arising in the quadrate lobe of the liver. hepatic d., right, a branch of the hepatic duct arising in the right lobe of the liver. he pat i cop an creatic d., the common bile-duct after its junction with the pancreatic duct. he to cystic d., a biliary duct which discharges Its secretion directly into the gall-bladder. hermaphrodite d., in a true hermaphrodite a duct which represents a vas deferens and an oviduct. d., the pancreatic duct. hy- pep al a., the duct of the pituitary body. lobular biliary d’s, minute branches of the bile-ducts forming a network in and around the liver-cells. lacrimal d’s, convey the secretion from the lacrimal gland. lactiferous d’s, the galactophorous ducts. Leyden’s d., the mesonephric duct. Leydig’s d., the wolffian duct. fi d., a depre ion on the dorsum of the tongue at the apex of the terminal sulcus. Luschka’s d’s, tubular structures in the wall of the gall-bladder. lymphatic d’s, the two principal lymph-canals of the body—the right lym phatic d., from the right side of the head, arm, and thorax, and the /eft or thoracic d. lymphatic d., left, the thoracic duct. lymphatic d., right, a ve el which receives the lymph from the absorbent ve els of the right side above the liver, and discharges it at the junction of the right subclavian and the internal jugular veins. Mammary d’s, the canalicular and galactophorous ducts. mesonephric d., an embryonic duct which in the male becomes the vas deferens, and in the female becomes nearly obsolete. metanephric d’s, the ureters. milk-d’s, the canalicular and galactophorous ducts. mucous d., any duct lined with mucous membrane. Miiller’s d’s, two ducts of the embryo which empty into the cloaca, and are developed into uterus, vagina, and’ oviducts. nasal d., the pa age which conveys the tears from the lacrimal sac into the inferior nasal meatus. nasolacrimal d., the nasal or lacrimal duct. nephric d., the duct of the kidney. omphalomesenteric d., vitelline d., connects the alimentary canal and uterine vesicle. ovarian d. See oviduct. pancreatic d., the excretory duct of the pancreas, going either to the duct us choledochus communis or to the duodenum. pancreatic d., acce ory, the excretory duct of the le er pancreas. pancreatic d., minor, the acce ory pancreatic duct. pancreatic d., supplementary, the acce ory pancreatic duct. parotid d., the duct of Steno. d. of Pecquet, the thoracic duct. pronephric d., an early embryonic duct of the pro nephron, probably becoming later the atrophied anterior segment of the duct of Miiller. prostatic d’s, the excretory ducts of the prostate gland, twelve to twenty in number. Rathke’s d., that part of the duct of Miiller which lies between the main part of the latter and the sinus pocularis. Reichel’s cloacal d., the cleft between Douglas’ septum and the cloaca in the embryo. renal d., a ureter. d. of Rivinus, one of the ducts of the sublingual gland. roriferous d., the thoracic duct. sacculo-utricular d. See utriculosaccular d. salivary d’s, the ducts that convey the saliva: they are the parotid or Stenson’s duct, the submaxillary or Wharton’s duct, and the sublingual ducts (Rivinus’ and Bartholin’s ducts). d. of Sant or in i, the acce ory pancreatic duct. Schiiller’s d’s, the ducts of Skene's glands. secretory d., any one of the smaller ducts which are tributary to the excretory ducts of a gland. segmental d’s, a pair of canals in the embryo, extending from behind the body cavity to the cloaca. seminal d’s, conveyors of the semen, including the vas deferens, or excretory duct of the testis, d. of the seminal vesicle and the ejaculatory d. Skene’s d’s, the ducts of Skene’s glands. spermatic d., the vas deferens. d. of Steno, Stenson’s d., the excretory duct of the parotid gland. sublingual d’s, the duct of Bartholin and duct of Rivinus. submax-. Same as Wharton’s d. tear-d., the nasal duct; also any one of the seven excretory ducts of the lacrimal gland. testicular d., the vas deferens. thoracic d., the canal which ascends from the receptaculum chyli to the junction of the left subclavian and left internal jugular veins. It acts as a channel for the collection of the lymph from the portions of the body below the diaphragm and from the left side of the body above the diaphragm. thyroglo al d., thyrolingual d., a duct in the embryo extending between the thyroid body and the posterior part of the tongue. Its opening is represented in the adult by the foramen cecum. umbilical d., a duct extending from the umbilical vesicle to the intestinal cavity of the embryo. urogenital d., the duct of Miiller and the wolffian duct. utriculosaccular d., a narrow duct uniting the utriculus and the sacculus of the labyrinth. vitelline d., the omphalomesenteric duct or structure connecting the alimentary canal with the umbilical vesicle in the embryo. Walther’s d's, the ducts of the acce ory sublingual glands. Wharton's d., the excretory duct of the submaxillary gland. d. of Wirsung, the pancreatic duct. wolffian d’s, two ducts of the embryo which connect the wolffian bodies with the cloaca. ductile (duk’til) (L. duc’til is, from du’cere to draw, to lead]. Susceptible of being drawn out, as into a wire. ductle (dukt’les). as. ductle glands. ductule (dukt’al). Any minute duct; also that part or branch of a duct which is nearest the alveolus of a gland. duct us (duk’tus) [L.]. Any pa age or duct, as of a gland. d. aber’rans. See aberrant duct, Having no excretory duct; 306 DUMMINESS under duct. d. arterio’sus, d. arterio’sus [botal’li], a channel in the fetus from the pulmonary artery to the aorta. d. audi to’rius, d. cochlea‘ris, the membranous cochlea, or cochlear canal. d. bilif‘eri, the biliary canaliculi. ἅ. choled’och us. See biliary ducts, under duct. dd. coch’lew, the lower part of the scala media, containing the organ of Corti. d. cuvi’eri. See ducts of Cuvier. da. cys’tic us, the cystic duct. d. def’erens. Same as vas deferens. ἃ. endolymph at’icus, a canal which connects the membranous labyrinth with the general cerebral lymph-spaces. ad. epodph’- ori longitudina’lis. Same as Gértner’s duct. See under duct. d. hepat’icus, the hepatic duct. d. incisi’vus, the extension of the incisive foramen between the palatine proce es into the nose. d. pancreat’icus acce o’rius (sant or in i], the acce ory pancreatic duct. d. perilymph at’- icus, a canal which connects the per i lymphatic space of the o eous labyrinth with the general cerebral lymph-space. d. prost at‘ici, the ducts of the prostate gland. d. reu’niens, d. reu’- niens (henseni], a small canal leading from the saccule to the membranous labyrinth; the canal is reuniens. d. veno’sus, d. veno’sus [aran’tii], a fetal blood-ve el connecting the umbilical vein with the postcava.