PATHOLOGY

Detailed explanation-1: -The hepatic plexus is also responsible for providing autonomic innervation to the gallbladder and the extrahepatic biliary system. The parasympathetic division stemming from the vagus nerves causes the gallbladder to contract and bile to flow within the duodenum.

Detailed explanation-2: -The innervation of the GB in humans involved three routes: via the anterior and posterior hepatic plexus, respectively, and the phrenic nerves.

Detailed explanation-3: -The biliary system receives its nerve supply from two main sources : (a) the right and left vagus nerves and (b) the celiac ganglia. Phrenic nerve components reach the biliary system, at least in some cases.