Valve of heister is seen in -: (A) Cystic duct, (B) Common bile duct, (C) Common hepatic duct, (D) Pancreatic duct
Answer is A. Ans. is 'a'- i.e., Cystic duct o The 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.o This question is a direct repeat from NBE based AI-2013