hepatic duct


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Related to hepatic duct: common bile duct, cystic duct, pancreatic duct, hepatic duct obstruction

duct

 [dukt]
a passage with well-defined walls, especially a tubular structure for the passage of excretions or secretions. adj., adj ductal.
accessory duct of Santorini a tubular structure that drains the lower part of the head of the pancreas.
alveolar d's small passages connecting the respiratory bronchioles and the alveolar sacs.
Bartholin's duct (duct of Bartholin) the larger and longer of the sublingual ducts.
bile d's (biliary d's) see bile ducts.
cochlear duct a spiral membranous tube in the bony canal of the cochlea between Reissner's membrane and the basilar membrane; it is divided into the scala tympani, scala vestibuli, and spiral lamina. Called also scala media.
common bile duct a duct formed by the union of the cystic and hepatic ducts; see also bile ducts.
cystic duct the passage connecting the gallbladder neck and the common bile duct.
efferent duct any duct that gives outlet to a glandular secretion.
ejaculatory duct the duct formed by union of the ductus deferens and the duct of the seminal vesicles, opening into the prostatic urethra on the colliculus seminalis.
endolymphatic duct a canal connecting the membranous labyrinth of the ear with the endolymphatic sac.
excretory duct one through which the secretion is conveyed from a gland.
hepatic duct the excretory duct of the liver, or one of its branches in the lobes of the liver; see also bile ducts.
Hepatic duct. From Applegate, 2000.
lacrimal duct the excretory duct of the lacrimal gland; see also lacrimal apparatus. Called also lacrimal canaliculus.
lacrimonasal duct nasal duct.
lactiferous d's ducts conveying the milk secreted by the lobes of the breast to and through the nipples.
lymphatic duct, left thoracic duct.
lymphatic d's see lymphatic ducts.
mammary duct lactiferous ducts.
mesonephric duct an embryonic duct of the mesonephros, which in the male becomes the epididymis, ductus deferens and its ampulla, seminal vesicles, and ejaculatory duct, and in the female is largely obliterated.
müllerian duct either of the two paired embryonic ducts developing into the vagina, uterus, and fallopian tubes, and becoming largely obliterated in the male.
nasal duct (nasolacrimal duct) the downward continuation of the lacrimal sac, opening on the lateral wall of the inferior meatus of the nose; see also lacrimal apparatus.
pancreatic duct the main excretory duct of the pancreas, which usually unites with the common bile duct before entering the duodenum at the major duodenal papilla; see also bile ducts.
papillary d's straight excretory or collecting portions of the renal tubules, which descend through the renal medulla to a renal papilla.
paramesonephric duct müllerian duct.
paraurethral d's Skene's glands.
parotid duct the duct by which the parotid glands empty into the mouth.
prostatic d's minute ducts from the prostate, opening into or near the prostatic sinuses on the posterior wall of the urethra.
lymphatic duct, right a vessel draining lymph from the upper right side of the body, receiving lymph from the right subclavian, jugular, and mediastinal trunks when those vessels do not open independently into the right brachiocephalic vein.
salivary d's the ducts of the salivary glands.
semicircular d's the long ducts of the membranous labyrinth of the ear.
seminal d's the passages for conveyance of spermatozoa and semen.
sublingual d's the excretory ducts of the sublingual salivary glands.
submandibular duct (submaxillary duct) the duct that drains the submandibular gland and opens at the sublingual caruncle.
tear duct lacrimal duct.
thoracic duct a duct beginning in the cisterna chyli and emptying into the venous system at the junction of the left subclavian and left internal jugular veins. It acts as a channel for the collection of lymph from the portions of the body below the diaphragm and from the left side of the body above the diaphragm.

com·mon he·pa·tic duct

[TA]
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.

hepatic duct

n.
The main excretory duct of the liver, which carries bile from the liver and joins the cystic duct to form the common bile duct.

com·mon he·pa·tic duct

(kom'ŏn he-pat'ik dŭkt) [TA]
The part of the biliary duct system that is formed by the confluence of the right and left hepatic ducts. At the porta hepatis it is joined by the cystic duct to become the bile duct.

duct

a passage with well-defined walls, especially a tubular structure for the passage of excretions or secretions. See also ductus.

accessory pancreatic duct
the duct of the dorsal pancreatic primordium that opens on the minor duodenal papilla. Called also Santorini's duct or duct of Santorini.
allantoic duct
see urachus.
alveolar duct
one of the final branches of the bronchial tree consisting of a tube whose walls are composed of alveoli.
bile duct, biliary duct
the passages for the conveyance of bile in and from the liver. See also bile duct.
cochlear duct
a spiral membranous tube in the bony canal of the cochlea divided into the scala tympani, scala vestibuli and spiral lamina.
common bile duct
a duct formed by the union of the cystic and hepatic ducts. See also bile duct.
cystic duct
the passage connecting the gallbladder neck and the bile duct.
efferent duct
any duct that gives outlet to a glandular secretion.
ejaculatory duct
the duct formed by union of the ductus deferens and the duct of the seminal vesicles, opening into the prostatic urethra on the colliculus seminalis. Found in the horse and ruminants.
endolymphatic duct
a canal connecting the membranous labyrinth of the ear with the endolymphatic sac.
epididymal duct
developed from the first part of the mesonephric duct.
excretory duct
one through which the secretion is conveyed from a gland.
duct of Gartner
hepatic duct
the excretory duct of the liver, or one of its branches in the lobes of the liver. See also bile duct.
incisive duct
one of a pair of ducts perforating the palate and which communicate between the mouth and the nasal cavity; they are thought to conduct chemicals for olfactory appraisal by the vomeronasal organ.
intralobar duct
ducts within lobes which provide drainage for secretions of lobes of glands.
intralobular duct
ducts found within lobules which provide drainage for secretions of lobules of glands.
lacrimal duct
one of the excretory ducts of the lacrimal gland. See also lacrimal apparatus.
lacrimonasal duct
nasolacrimal duct.
lactiferous duct
ducts conveying the milk secreted by the lobes of the mammary gland to the lactiferous sinuses or to the teats.
lobar duct
drains the secretions from the lobes of gland, connecting with the main excretory duct.
lobular duct
drains the secretions of lobules of glands.
lymphatic duct
larger lymph drainage vessels, e.g. thoracic duct.
lymphatic duct (left)
thoracic duct.
lymphatic duct (right)
a vessel draining lymph from the cranial right side of the body, receiving lymph from the right subclavian, jugular and mediastinal trunks when those vessels do not open independently into the right brachiocephalic vein.
mammary duct
lactiferous ducts.
mandibular duct
drainage duct of the mandibular salivary gland.
mesonephric duct
see mesonephric duct.
metanephric duct
the embryonic ureter.
müllerian duct
see müllerian duct.
nasal duct
the duct leading from the lacrimal sac, opening on the floor of the nasal vestibule. Called also nasolacrimal duct. See also lacrimal apparatus.
nasolacrimal duct
see nasal duct (above).
nasopalatine duct
see incisive duct (above).
pancreatic duct
the main excretory duct of the pancreas, which usually opens with the bile duct on the major duodenal papilla; may be a single duct, or two ducts which join, or two independent ducts opening into opposite sides of the intestine. See also bile duct. Called also Wirsung's duct.
papillary d's (kidney)
the straight excretory or collecting portions of the renal tubules, which descend through the renal medulla to a renal papilla or renal crest.
papillary duct (teat)
paramesonephric duct
müllerian duct.
parotid duct
the duct by which the parotid gland empties into the mouth vestibule opposite the upper molars. See also parotid glands.
perilymphatic duct
see aqueduct of cochlea.
pronephric duct
the early embryonic duct from the primitive kidney which leads into the mesonephric duct in the embryo's later stages.
prostatic d's
minute ducts from the prostate, opening into or near the prostatic sinuses on the dorsal wall of the urethra.
salivary d's
the ducts of the salivary glands.
semicircular d's
the long ducts of the membranous labyrinth of the ear.
sublingual duct
the excretory ducts of the sublingual salivary glands.
submandibular duct
the duct that drains the submandibular gland and opens at the sublingual caruncle. Called also submaxillary duct.
submaxillary duct
submandibular duct (above).
tear duct
nasolacrimal duct.
thoracic duct
a duct beginning in the cisterna chyli and emptying into the venous system at the junction of the left subclavian and left jugular veins. It acts as a channel for the collection of lymph from the portions of the body caudal to the diaphragm and from the left side of the body cranial to the diaphragm.
thyroglossal duct
the transient, non-patent duct, from the thyroid gland to the floor of the pharynx which is the legacy of the development of the thyroid from the floor of the pharynx.
vitelline duct
see meckel's diverticulum.

hepatic

emanating from or pertaining to liver.

hepatic abscess
common in cattle as a sequel to rumenitis; characterized by fever, leukocytosis and pain on percussion over the liver.
hepatic acinus
see liver acinus.
hepatic angle
the angle made by the caudolateral border of the caudate liver lobe on abdominal radiography.
hepatic arterioportal fistula
shunt between the hepatic artery and the portal vein.
hepatic atrophy and nodular regeneration
a disease of dogs, due to unknown cause but possibly a toxin, characterized by nodular regenerative hyperplasia and atrophy of severely fatty hepatocellular parenchyma and gradually developing, always fatal, liver insufficiency.
hepatic cell
hepatocyte.
hepatic cirrhosis
diffuse hepatic fibrosis associated with the formation of structurally abnormal, regenerative, parenchymal nodules. Initiated by hepatocyte necrosis.
hepatic coccidiosis
spoken of but recorded only once in a calf.
hepatic congestion
a common feature of congestive heart failure and other circulatory embarrassments of venous drainage of the liver; occurs also in anaphylaxis.
diffuse hepatic fibrosis
results from continued, chronic hepatic injury or the summation of repeated bouts of zonal necrosis; the resulting fibrosis links portal areas and hepatic venules and bisects liver lobules.
hepatic distomatosis
infection of the liver with flukes, e.g. Fasciola hepatica, Fascioloides magna, Metorchus conjunctus. See also fascioliasis.
hepatic diverticulum
an outgrowth of the embryonic duodenum; it divides into a pars hepatica and a pars cystica, forerunners of the liver and the gallbladder respectively.
hepatic duct
see hepatic duct.
hepatic fibrosis
a reaction to chronic injury to the liver; includes biliary fibrosis, postnecrotic scarring, diffuse hepatic fibrosis and periacinar fibrosis.
Enlarge picture
Hepatic fibrosis with nodular hyperplasia. By permission from Nelson RW, Couto CG, Small Animal Internal Medicine, Mosby, 2003
hepatic injury
hepatic jaundice
jaundice caused by disease of hepatic parenchyma in contrast to hemolytic and obstructive jaundice.
hepatic lipidosis
see fatty liver.
hepatic microsomal enzymes
see microsomal enzymes.
hepatic necrosis
death of hepatic parenchyma which may be single cell (necrobiosis), or multicell in piecemeal, focal, periacinar, midzonal, periportal or paracentral locations. Massive necrosis refers to events in individual acini in which all hepatocytes are dead.
omphalogenic hepatic abscess
abscess resulting from infection of the umbilicus and direct vascular extension to the liver.
hepatic periacinar fibrosis
fibrosis limited to the zones around hepatic venules; a response to congestive heart failure or to intoxication.
hepatic photosensitization
see secondary photosensitization.
hepatic sinusoids
the intralobular vascular supply system; lined by endothelial cells and stellate macrophages.
References in periodicals archive ?
In this procedure, a part of the small intestine, the jejunum, is looped up and adjoined to the hepatic ducts, allowing the flow of bile from the liver directly into the intestine.
One case of paraganglioma occurred in the common hepatic duct, (3) and the other two in the bile duct.
It was subsequently divided into four major types, depending on the extent of compression of the common hepatic duct, on whether a cholecystocholedochal fistula is present, and on the size of that fistula.
Surgical treatment was undertaken and consisted of a left hepatic lobectomy with resection of the common hepatic duct and common bile duct, followed by anastomosis to the right hepatic duct.
A 4-cm tumor arose from the common hepatic duct and directly invaded the pancreatic head and liver.
If the lesion is growing in the proximal part of the hepatic duct, its removal may be difficult or impossible without major hepatic resection.
Fifty-three cases were identified, including 8 carcinomas of the EHBD (1 hepatic duct, 7 common bile duct), 7 ampullary carcinomas, 11 carcinomas of the gallbladder, and 27 carcinomas of the pancreas (24 pancreatic ductal and 3 cystadenocarcinomas).
Contrast injection of the common bile duct demonstrated a vermiform filling defect that extended from the distal duct into a right hepatic duct (Figure 1).
It can be used for guiding and exchanging endoscopic accessories in the biliary system, including the common bile, cystic, pancreatic and right and left hepatic ducts.
The examination was considered incomplete or equivocal if the common bile duct and common hepatic ducts were not visualized completely.
The SpyGlass System guides visualization and accessory devices for diagnostic and therapeutic procedures in the pancreatico-biliary system, including the hepatic ducts.