Cystic duct
Overview
| Cystic duct | |
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| Digestive system diagram showing the cystic duct | |
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| 1: Right lobe of liver 2: Left lobe of liver 3: Quadrate lobe of liver 4: Round ligament of liver 5: Falciform ligament 6: Caudate lobe of liver 7: Inferior vena cava 8: Common bile duct 9: Hepatic artery 10: Portal vein 11: Cystic duct 12: Hepatic duct 13: Gallbladder | |
| Latin | ductus cysticus |
| Gray's | subject #250 1198 |
| Artery | cystic artery |
| Dorlands/Elsevier | d_29/12314797 |
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The cystic duct is the short duct that joins the gall bladder to the common bile duct. It usually lies next to the cystic artery. It is of variable length. It contains a 'spiral valve', which does not provide much resistance to the flow of bile.
Function
Bile can flow in both directions between the gallbladder and the common hepatic duct and the (common) bile duct.
In this way, bile is stored in the gallbladder in between meal times and released after a fatty meal.
Clinical significance
During a cholecystectomy, the cystic duct is clipped two or three times and a cut is made between the clips, freeing the gallbladder to be taken out.
Additional images
The gall-bladder and bile ducts laid open.
The portal vein and its tributaries.
External links
- cystic+duct at eMedicine Dictionary
- SUNY Figs 38:06-03 - "The gallbladder and extrahepatic bile ducts."
- SUNY Labs 38:14-0106 - "Stomach, Spleen and Liver: The Gallbladder and the Bile System"
- Norman/Georgetown liver (liverinferior, biliarysystem)
Anatomy of torso, digestive system: Digestive glands | |
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| Liver | by region: Left lobe (Caudate lobe, Quadrate lobe) • Right lobe • Transverse fissure of liver
by function: Fibrous capsule of Glisson • Hepatocyte • Space of Disse • Space of Mall • Kupffer cell • Liver sinusoid • Ito cell • Hepatic lobule bile ducts: Bile canaliculus • Canals of Hering • Interlobular bile ducts • Intrahepatic bile ducts • Left and Right hepatic ducts • Common hepatic duct |
| Gallbladder | by region: Body • Fundus • Neck ducts: Cystic duct |
| Pancreas | by region: Tail • Body • Head • Uncinate process
by function: Islets of Langerhans • Exocrine pancreas ducts: Pancreatic duct • Accessory pancreatic duct |
| Common | Common bile duct • Hepatopancreatic ampulla • Sphincter of Oddi |
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