biliary tract


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Related to biliary tract: gallbladder, biliary tract cancer

tract

 [trakt]
a longitudinal assemblage of tissues or organs, especially a number of anatomic structures arranged in series and serving a common function, such as the gastrointestinal or urinary tract; also used in reference to a bundle (or fasciculus) of nerve fibers having a common origin, function, and termination within the central nervous system.
alimentary tract alimentary canal.
biliary tract the organs, ducts, and other structures that participate in secretion (the liver), storage (the gallbladder), and delivery (hepatic and bile ducts) of bile into the duodenum. See illustration.
Anatomy of the gallbladder and biliary tract. From Aspinall and Taylor-Robinson, 2002.
corticospinal t's two groups of nerve fibers (the anterior and lateral corticospinal tracts) that originate in the cerebral cortex and run through the spinal cord.
digestive tract alimentary canal.
dorsolateral tract a group of nerve fibers in the lateral funiculus of the spinal cord dorsal to the posterior column.
extrapyramidal tract extrapyramidal system.
gastrointestinal tract the stomach and intestine in continuity; see also digestive system.
iliotibial tract a thickened longitudinal band of fascia lata extending from the tensor muscle downward to the lateral condyle of the tibia.
intestinal tract see intestinal tract.
optic tract the nerve tract proceeding backward from the optic chiasm, around the cerebral peduncle, and dividing into a lateral and medial root, which end in the superior colliculus and lateral geniculate body, respectively.
pyramidal t's collections of motor nerve fibers arising in the brain and passing down through the spinal cord to motor cells in the anterior horns.
respiratory tract respiratory system.
urinary tract the organs and passageways concerned in the production and excretion of urine from the kidneys to the urinary meatus; see also urinary system.
uveal tract the vascular tunic of the eye, comprising the choroid, ciliary body, and iris.

biliary tract

Etymology: L, bilis, bile, tractus
the pathway for bile flow from the canaliculi in the liver to the opening of the bile duct into the duodenum.

biliary tract

The biliary plumbing system, which consists of the gallbladder, intrahepatic bile ducts, cystic duct—gallbladder to common bile duct—and common bile duct—liver and gallbladder to small intestine. Biliary tract obstruction usually leads to obstructive jaundice.
Enlarge picture
BILIARY TRACT (IN RELATION TO LIVER, PANCREAS, AND DUODENUM)

biliary tract

The organs and ducts through which bile travels on its way to the duodenum. These are the bile canaliculi, right and left hepatic ducts, common hepatic duct, gallbladder, cystic duct, bile duct, and hepatopancreatic ampulla.
See: illustration; bile ducts; gallbladder; liver
See also: tract

biliary

pertaining to the bile, to the bile ducts, or to the gallbladder. See also bile duct.

biliary excretion
removal in the bile of substances including drugs, toxins, hormones or pigments, or their breakdown products. These are delivered to the duodenum and removed in the feces.
biliary fever
biliary fibrosis
one of the three forms of hepatic fibrosis; largely confined to the portal triads; see also bile duct fibrosis.
biliary infarct
areas of hepatic fibrosis that physically resemble vascular infarcts but are related to damaged bile ducts.
interlobular biliary duct
biliary obstruction
obstruction of biliary ducts may be intra- or extrahepatic, and intraluminal (calculi) or by external compression by tumor mass or cicatricial contraction, or more commonly in food animals by migrating ascarid larvae in the bile ducts or by cholangitis caused by Fasciola hepatica or Dichrocoelium dendriticum. Jaundice is the outstanding clinical sign of the condition. See also cholestasis.
biliary salts
see bile salt.
biliary stones
biliary tract
the organs, ducts, etc., participating in secretion (the liver), storage (the gallbladder, if present), and delivery (hepatic and bile ducts) of bile into the duodenum.
References in periodicals archive ?
Pathology of the Pancreas, Gallbladder, Extrahepatic Biliary Tract, and Ampullary Region.
Preoperative serum samples were obtained from 17 patients with biliary tract cancer, 27 with pancreatic cancer, 12 with hepatocellular carcinoma, and 32 with benign biliary tract disease from the Department of Surgery, Helsinki University Central Hospital, from June 1990 through February 1995.
Cholecystocutaneous fistulas are almost always a result of neglected biliary tract disease.
Time-resolved immunofluorometric assay of trypsin-1 complexed with al antitrypsin in serum: increased immunoreactivity in patients with biliary tract cancer.
Liver function tests are normal, except in patients with obstructive jaundice caused by tumor invasion of the biliary tract (8).
These are organized into sections discussing general considerations, percutaneous drainage and biopsy, intervention in the gastrointestinal tract, the biliary tract, the liver, intervention in the genitourinary tract, intervention in the thorax, musculoskeletal intervention, and percutaneous pain management.
1) Others speculate that IPT of the liver represents an inflammatory response to infection of the biliary tract or other extrahepatic sites.
Abstract: CA 19-9 is a marker of malignancy of the pancreas and biliary tract.
These mothers also had babies with biliary tract, kidney, and head and face anomalies.
Most of those who experience gallbladder and biliary tract symptoms are familiar with the types of food that it is necessary to avoid.
Recent international reports have suggested that an abnormal pancreatic and bile duct junction can influence the degree of pancreatic fluid regurgitation, resulting in an increased incidence of biliary tract malignancy.