Valve of heister is seen in
Ans. is 'a' i.e., Cystic ductThe mucous membrane of the cystic duct forms a series of 5-12 crescentic folds, arranged spirally to form the so called spiral valve of Heister. This is not a true valve.Also knowHamanns pouch - dilated posteromedial wall of neck of gall bladder.Sphincter choledochus - always present - terminal pa of bile ductSphincter pancreaticus - usually present - terminal pa of pancreatic ductSphincter ampullae (of Oddi) - surrounds the hepatopancreatic ampulla
Cystic duct
Common bile duct
Common hepatic duct
Pancreatic duct