Accessory Organs of Digestion: Functions and Roles

Accessory digestive organs (liver, gallbladder, pancreas) produce enzymes, bile, and hormones that aid food breakdown and absorption.

1. Liver

• Bile production – Emulsifies fats for enzymatic action.
• Detoxification – Processes waste, drugs, toxins.

2. Gallbladder

• Bile storage & release – Concentrates bile; contracts to release it when fatty food enters duodenum.

3. Pancreas

• Enzyme secretion – Lipases, proteases, amylases digest fats, proteins, carbs.
• Bicarbonate secretion – Neutralizes acidic chyme for optimal enzyme activity.

4. Salivary Glands

Secrete saliva with amylase to start carbohydrate digestion in mouth.

These organs work in concert with the GI tract for efficient nutrient extraction.