Cystic Duct
Cystic Duct - Related Videos
04:02
Laparoscopic Cholecystectomy with Indocyanine Green Fluorescence: Choledochoscopic Stone Extraction and Primary Duct Suture
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2025
The integrated technique described in this protocol achieves real-time biliary mapping via indocyanine green (ICG) fluorescence, minimally invasive stone clearance under direct visualization, and secure primary duct repair (6-0 PDS), eliminating T-tube drainage.
09:16
Organ Culture and Whole Mount Immunofluorescence Staining of Mouse Wolffian Ducts
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Cited by 4 •
2017
We present a method for isolation and culture of the mouse Wolffian duct (WD). We also demonstrate a detailed procedure for whole mount immunostaining of cultured/freshly isolated WDs with fluorescently tagged antibodies. Together, these techniques enable the study of WD development, coiling, and differentiation.
01:23
Cystic Fibrosis: Pathogenesis
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2024
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body. CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation, but...
11:52
Isolation of Basal Cells and Submucosal Gland Duct Cells from Mouse Trachea
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Cited by 17 •
2012
Here we demonstrate our protocol for isolation of basal and submucosal gland duct cells from mouse tracheas. We also demonstrate the method of injecting stem cells into the dorsal mouse fat pad to create an in vivo model of submucosal gland regeneration.
14:56
Expression and Purification of the Cystic Fibrosis Transmembrane Conductance Regulator Protein in Saccharomyces cerevisiae
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Cited by 19 •
2012
Attempts to express the cystic fibrosis transmembrane conductance regulator (CFTR) in Saccharomyces cerevisiae have, until now, yielded relatively low amounts of protein. This protocol and the associated reagents distributed via the Cystic Fibrosis Foundation should allow the preparation of milligram amounts of this 'difficult' eukaryotic membrane protein.
FAQs
Spiral mucosal folds help maintain the cystic duct’s patency, meaning they help keep the narrow passage open. This structural feature supports bidirectional bile movement between the gallbladder and the extrahepatic biliary tree. By preserving a usable channel, the folds contribute to bile storage between meals and later delivery toward the intestine when coordinated contractions occur.
After a meal, coordinated gallbladder contraction promotes bile movement out of the gallbladder, while relaxation of the sphincter of Oddi permits passage through the biliary system toward the duodenum. The cystic duct provides the connection within this route, helping stored and concentrated bile reach the intestine when it is needed for fat digestion and absorption.
The gallbladder acts as a storage and concentration site between meals, whereas the sphincter of Oddi helps regulate when bile can enter the duodenum. Their coordinated activity determines whether bile is retained or directed onward through the cystic duct and common bile duct. This coordination links biliary storage with digestive demand after eating.
An obstruction can interfere with movement between the gallbladder and the extrahepatic biliary tree, disrupting the normal route by which bile reaches the intestine. Because the cystic duct participates in gallbladder filling and emptying, blockage can alter bile storage or release. This mechanism is important when interpreting conditions involving gallstones or inflammation in the biliary system.
Its anatomy matters during hepatobiliary surgery because the duct forms a critical connection between the gallbladder and the extrahepatic biliary tree. Understanding its course and relationship to bile flow helps clinicians interpret how surgical changes may affect gallbladder drainage and communication with the common bile duct. The same anatomical knowledge also supports evaluation of obstruction and inflammation.
A useful analysis considers structure, flow, and regulation together. Students should relate the spiral mucosal folds to duct patency, gallbladder contraction to bile release, and sphincter of Oddi relaxation to entry into the duodenum. They can then connect disturbances in these features with gallstone obstruction, inflammation, altered bile movement, and the clinical importance of hepatobiliary anatomy.