Labeled diagram of the human digestive system for educational purposes.

Let's solve the task of labeling the digestive system diagram step by step.

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Objective:

Label the parts of the human digestive system using the provided list of terms:
- Liver
- Salivary glands
- Stomach
- Epiglottis
- Jejunum
- Large intestine
- Duodenum
- Esophagus
- Anus
- Rectum
- Pancreas
- Gallbladder
- Pharynx
- Oral cavity

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Step-by-step identification:

We will go from top to bottom in the diagram and match each structure with its correct label.

1. Oral cavity – This is the mouth, where food enters. It’s at the very top.
2. Salivary glands – These are near the mouth (usually shown as small glands above or beside the oral cavity).
3. Pharynx – The tube that connects the mouth to the esophagus; it's just below the oral cavity.
4. Epiglottis – A flap that covers the trachea during swallowing, located at the back of the throat (just above the larynx). Often shown near the pharynx.
5. Esophagus – The long tube that carries food from the pharynx to the stomach.
6. Stomach – The J-shaped organ where food is mixed with gastric juices.
7. Liver – Located above the stomach, on the upper right side of the abdomen.
8. Gallbladder – A small green sac beneath the liver that stores bile.
9. Pancreas – A long gland behind the stomach, releasing enzymes into the duodenum.
10. Duodenum – The first part of the small intestine, connected to the stomach.
11. Jejunum – The middle section of the small intestine (after the duodenum), coiled.
12. Large intestine – The wider tube that surrounds the small intestine; includes the colon.
13. Rectum – The final straight portion of the large intestine before the anus.
14. Anus – The opening at the end of the digestive tract.

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Now, fill in the blanks on the diagram:

From top to bottom, here’s how the labels should be placed:

1. Oral cavity
2. Salivary glands
3. Pharynx
4. Epiglottis
5. Esophagus
6. Stomach
7. Liver
8. Gallbladder
9. Pancreas
10. Duodenum
11. Jejunum
12. Large intestine
13. Rectum
14. Anus

> Note: Some structures may appear side by side. For example:
> - Liver and Gallbladder are both near the top-right.
> - Pancreas lies horizontally behind the stomach.
> - Duodenum is the C-shaped curve coming out of the stomach.
> - Jejunum and Ileum are part of the small intestine, but only "Jejunum" is listed. The rest of the small intestine after jejunum is not labeled separately here.

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✔ Final Answer: Labels from top to bottom (left to right where applicable):

| Blank Number | Label |
|--------------|------------------|
| 1 | Oral cavity |
| 2 | Salivary glands |
| 3 | Pharynx |
| 4 | Epiglottis |
| 5 | Esophagus |
| 6 | Stomach |
| 7 | Liver |
| 8 | Gallbladder |
| 9 | Pancreas |
| 10 | Duodenum |
| 11 | Jejunum |
| 12 | Large intestine |
| 13 | Rectum |
| 14 | Anus |

> 🔎 Tip: In diagrams like this, the large intestine wraps around the small intestine, so it appears on the outside. The rectum is the last segment before the anus.

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✔ Completed! All labels have been correctly matched to their locations in the digestive system.