Question

Which of the following is not a part of the human digestive system?

• A. Stomach
• B. Pancreas
• C. Liver
• D. Lungs

Hint:

*Remember:* The digestive system includes organs that help process food, while the lungs are part of the respiratory system.

Answer 1

The Correct Option is D

To solve the problem, let's understand the human digestive system and the roles of the organs listed, so we can identify which one is not involved in digestion.

1. What is the Digestive System?

The digestive system helps our body to break down the food we eat into smaller parts so that the body can absorb nutrients and energy. It also helps get rid of waste.

2. Important Organs in the Digestive System:

• Stomach: This is a muscular bag where food is mixed with digestive juices and broken down into a semi-liquid form. It is a key organ in digestion.
• Pancreas: This organ produces important digestive enzymes that help break down proteins, fats, and carbohydrates. It also makes hormones like insulin that regulate blood sugar.
• Liver: The liver produces bile, a substance that helps digest fats. It also processes nutrients absorbed from the small intestine and removes toxins.

3. What About the Lungs?

• The lungs are part of the respiratory system, not the digestive system.
• Their main job is to help you breathe by taking in oxygen and removing carbon dioxide from your blood.
• The lungs do not help in breaking down food or absorbing nutrients.

4. Summary:

- The stomach, pancreas, and liver all play important roles in digestion.
- The lungs are essential for breathing but are not involved in digesting food.

Final Answer:

The organ that is not part of the human digestive system is the lungs.