Salivary Glands PancreasEsophagus LiverGallbladder Ascending Colon
Ileum Rectum AppendixPancreasStomach Transverse ColonDescending Colon Cecum Parotid Gland Sublingual Gland
Submandibular Gland Coronary LigamentCystic Duct DuodenumFalciform Ligament Pons
Gallbladder Hepatic Duct Pancreatic Duct Common Bile Duct Parotid Gland Sublingual GlandSubmandibular Gland
- Cystic Duct is usually variable in length but mostly 4 cm long in adults. It is a connection between Gallbladder and Common Bile Duct.
- Cystic Duct contains wave like folds from inside in proximal portion known as Spiral Valves of Heister.
- Cystic Duct is present just to the left of Gallbladder, under the lower border of liver.
- It runs downwards obliquely to left side.
- Cystic Duct ends by joining Common Hepatic Duct.
- Cystic Duct lies anterior to Portal and Superior Mesenteric Veins.
- Pancreas is present on left side.
- Cystic Duct allows movement of bile in both directions i.e. towards and away from Gallbladder.
- Gallbladder stores bile till it is needed for digestion so flow is from Common Hepatic Duct to Gallbladder in Cystic Duct.
- When bile is needed for digestion (especially fatty meal) Gallbladder contracts and flow is towards Common Bile Duct, inside Cystic Duct.
- Spiral Valves of Heister are of little value as they don't function as true valves.
- Due to the presence of folds inside the duct there is difficulty in passage of surgical instruments via Cystic Duct.
- Gallstones can lodge inside Cystic Duct and block the flow of bile.
- Care must be taken in surgical removal of Gallbladder as Cystic Duct can leak out later after surgery.