25 Human Body Worksheets Middle School | Softball Wristband Template - Free Printable

Let’s go step by step to solve this problem.

We are given a diagram of the digestive system with numbered parts, and a table that lists structures and their functions. Our job is to:

1. Label each number on the diagram with the correct structure name from the table.
2. Then, for each labeled structure, write its function in digestion using the table.

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First, let’s match the numbers on the diagram to the structure names.

Looking at the diagram:

- 1 → Mouth (it’s where food enters)
- 2 → Salivary glands (they’re near the mouth, under the jaw)
- 3 → Liver (large organ on the right side of the abdomen)
- 4 → Gall bladder (small sac under the liver)
- 5 → Anus (end of the digestive tract)
- 6 → Rectum (just before the anus)
- 7 → Large intestine (the wider tube around the small intestine)
- 8 → Small intestine (coiled tube in the middle)
- 9 → Pancreas (behind the stomach, looks like a leaf or comma)
- 10 → Stomach (J-shaped organ below the esophagus)
- 11 → Oesophagus (tube from throat to stomach)
- 12 → Epiglottis (flap at top of throat, above the oesophagus)

Now, let’s use the table to find the function for each structure.

From the table:

- Mouth: Where food enters the body, known as ingestion.
- Salivary glands: Product saliva which lubricates the food and contains amylase for starch digestion.
- Epiglottis: Prevents swallowed food from entering the lungs.
- Oesophagus: Food travels down here by peristalsis to the stomach.
- Stomach: Food is mixed with acid and enzymes that digest protein in the food.
- Small intestine: Food is further digested in the first part and then absorbed into the blood in the later part.
- Large intestine: Reabsorption of water and water-soluble vitamins and minerals; faeces are formed.
- Rectum: Storage of faeces before egestion.
- Anus: When faeces are expelled from the body.
- Liver: Produces bile, which is involved in lipid digestion (emulsification).
- Gall bladder: Stores bile, which is involved in lipid digestion (emulsification).
- Pancreas: Produces digestive enzymes and alkali which are secreted into the small intestine.

Now we can fill in both parts of the task.

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Final Answer:

1.) Labels for the diagram:

1. Mouth
2. Salivary glands
3. Liver
4. Gall bladder
5. Anus
6. Rectum
7. Large intestine
8. Small intestine
9. Pancreas
10. Stomach
11. Oesophagus
12. Epiglottis

2.) Functions in digestion:

1. Mouth – Where food enters the body, known as ingestion.
2. Salivary glands – Produce saliva which lubricates the food and contains amylase for starch digestion.
3. Liver – Produces bile, which is involved in lipid digestion (emulsification).
4. Gall bladder – Stores bile, which is involved in lipid digestion (emulsification).
5. Anus – When faeces are expelled from the body.
6. Rectum – Storage of faeces before egestion.
7. Large intestine – Reabsorption of water and water-soluble vitamins and minerals; faeces are formed.
8. Small intestine – Food is further digested in the first part and then absorbed into the blood in the later part.
9. Pancreas – Produces digestive enzymes and alkali which are secreted into the small intestine.
10. Stomach – Food is mixed with acid and enzymes that digest protein in the food.
11. Oesophagus – Food travels down here by peristalsis to the stomach.
12. Epiglottis – Prevents swallowed food from entering the lungs.