Which of the following is NOT an accessory organ involved in digestion?

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Prepare for the TCC Nutrition 101 Test. Study effectively through multiple choice questions with hints and explanations. Ensure you're ready for your exam!

Multiple Choice

Which of the following is NOT an accessory organ involved in digestion?

Explanation:
The key idea is the distinction between primary digestive organs and accessory digestive organs. Accessory organs provide secretions that help digestion but are not part of the main digestive tube. The liver, gallbladder, and pancreas fit this role by delivering bile or digestive enzymes into the digestive tract. The stomach, however, is part of the alimentary canal itself—the site where mechanical mixing and chemical digestion occur, using gastric juice produced by its own glands. So, while the others contribute essential secretions to aid digestion, the stomach is a primary digestive organ, not an accessory one.

The key idea is the distinction between primary digestive organs and accessory digestive organs. Accessory organs provide secretions that help digestion but are not part of the main digestive tube. The liver, gallbladder, and pancreas fit this role by delivering bile or digestive enzymes into the digestive tract. The stomach, however, is part of the alimentary canal itself—the site where mechanical mixing and chemical digestion occur, using gastric juice produced by its own glands. So, while the others contribute essential secretions to aid digestion, the stomach is a primary digestive organ, not an accessory one.

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