Certified Surgical First Assistant (CSFA) Practice Test

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What is the structure called that allows for bile drainage from the gallbladder?

  1. Bile duct

  2. Cystic duct

  3. Common hepatic duct

  4. Pancreatic duct

The correct answer is: Cystic duct

The structure responsible for bile drainage from the gallbladder is the cystic duct. The cystic duct acts as a conduit between the gallbladder and the common bile duct, facilitating the flow of bile that is stored in the gallbladder back into the biliary system when needed, especially during the digestion of fats. Bile produced by the liver is stored and concentrated in the gallbladder, and when food enters the small intestine, hormones trigger the gallbladder to contract and release bile. The bile drains through the cystic duct, which then joins with the common hepatic duct to form the common bile duct before emptying into the duodenum. The bile duct, common hepatic duct, and pancreatic duct serve different functions in the biliary and digestive system. The bile duct generally refers to the entire path that bile travels and is not specific to drainage from the gallbladder. The common hepatic duct transports bile specifically from the liver and does not connect directly to the gallbladder. The pancreatic duct is involved in transporting digestive enzymes from the pancreas into the small intestine, not bile.