Which of the following is NOT an accessory organ?

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Multiple Choice

Which of the following is NOT an accessory organ?

Explanation:
Understanding this hinges on how digestive organs are classified. The stomach is a primary component of the gastrointestinal tract—the hollow tube where food passes and is chemically and mechanically processed. It stores food, churns it, and secretes gastric juice to begin protein digestion inside its lumen. The liver, gallbladder, and pancreas, by contrast, are accessory digestive organs: they produce secretions (bile and pancreatic juice) that are delivered to the small intestine to aid digestion but are not part of the flow-through tube itself. Because of that role, the stomach is not considered an accessory organ, whereas the others are.

Understanding this hinges on how digestive organs are classified. The stomach is a primary component of the gastrointestinal tract—the hollow tube where food passes and is chemically and mechanically processed. It stores food, churns it, and secretes gastric juice to begin protein digestion inside its lumen. The liver, gallbladder, and pancreas, by contrast, are accessory digestive organs: they produce secretions (bile and pancreatic juice) that are delivered to the small intestine to aid digestion but are not part of the flow-through tube itself. Because of that role, the stomach is not considered an accessory organ, whereas the others are.

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