[Autonomous nervous system and bile ducts (author's transl)]

Area of Science:

• Gastroenterology
• Neurogastroenterology
• Biliary System Physiology

Background:

• Bile storage, concentration, and excretion involve complex regulation by the autonomous nervous system.
• Ganglionic cells and nerve fibers are crucial for coordinating excretory function within the extrahepatic bile duct system.
• Reduced ganglionic cell numbers correlate with functional disorders of the bile duct system.

Purpose of the Study:

• To elucidate the role of the autonomous nervous system in regulating bile excretion.
• To understand the impact of anatomical and functional disruptions on bile duct coordination.
• To highlight the significance of autonomous regulation in therapeutic strategies for biliary dyskinesia.

Main Methods:

• Review of anatomical distribution of nerve structures in the extrahepatic bile duct system.
• Analysis of the functional consequences of anatomical disconnections (e.g., papilla Vateri and duodenal musculature).
• Emphasis on the role of parasympathetic activity in bile excretion regulation.

Main Results:

• Nerve structures, including ganglionic cells, are concentrated in key areas like the papilla and gall bladder neck, vital for excretory coordination.
• Anatomical separation of the papilla Vateri from duodenal musculature results in uncoordinated autonomous activity.
• Decreased ganglionic cells are observed in diseases with bile duct functional disorders.

Conclusions:

• The autonomous nervous system is indispensable for normal bile excretion and overall organ function.
• Coincidence of biliary dyskinesia with other functional disorders is explained by the widespread role of the autonomous nervous system.
• Autonomous regulation of bile excretion must be a key consideration in developing therapeutic regimens.