The roles of the human liver and pancreas in the digestion process are interconnected but distinct:
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Liver:
- Produces bile, which is essential for the emulsification and breakdown of fats in the small intestine.
- Plays a key role in metabolizing nutrients absorbed from the digestive tract, including carbohydrates, proteins, and fats.
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Pancreas:
- Produces digestive enzymes (such as amylase, lipase, and proteases) that are released into the small intestine to assist directly in the digestion of carbohydrates, fats, and proteins.
- Also secretes bicarbonate to neutralize stomach acid, creating an optimal environment for enzyme function.
In summary, while both organs support digestion, the liver primarily processes nutrients and produces bile for fat digestion, whereas the pancreas directly secretes enzymes that aid in the breakdown of carbohydrates, fats, and proteins.