File:Digestive system showing bile duct.png

Digestive system diagram showing bile duct location from public domain source http://www.pueblo.gsa.gov/cic_text/health/gallstones/digstsys.gif

as featured on public domain NIH/NIDDK e-pub web page http://www.pueblo.gsa.gov/cic_text/health/gallstones/gallstns.htm