Pancreatic duct of a healthy dog is blocked. Which one function of pancreas will not be affecte ?

Options

A. Maintenance of normal blood sugar level
B. Carbonhydrate digestion
C. Protein digestion
D. Neutralisation of chyme

Answer

To solve the question regarding which function of the pancreas will not be affected if the pancreatic duct of a healthy dog is blocked, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Structure of the Pancreas**: The pancreas has both endocrine and exocrine functions. The endocrine part consists of islets of Langerhans that secrete hormones directly into the bloodstream, while the exocrine part produces digestive enzymes that are secreted through ducts.

2. **Identify the Functions of the Pancreas**:
- **Endocrine Functions**: These include the regulation of blood sugar levels through the secretion of hormones like insulin (produced by beta cells) and glucagon (produced by alpha cells).
- **Exocrine Functions**: These include the production of digestive enzymes (like amylase for carbohydrates, trypsin for proteins, and lipase for fats) and bicarbonate to neutralize stomach acid in the small intestine.

3. **Analyze the Impact of a Blocked Pancreatic Duct**:
- If the pancreatic duct is blocked, the exocrine functions (digestive enzyme secretion and bicarbonate production) will be impaired because these substances cannot reach the intestine.
- However, the endocrine functions will remain unaffected since hormones like insulin and glucagon are released directly into the bloodstream and do not require a duct.

4. **Evaluate the Given Options**:
- **A. Maintenance of normal blood sugar level**: This is an endocrine function and will not be affected.
- **B. Carbohydrate digestion**: This relies on exocrine function (pancreatic amylase) and will be affected.
- **C. Protein digestion**: This also relies on exocrine function (trypsin, etc.) and will be affected.
- **D. Neutralization of chyme**: This relies on bicarbonate from the exocrine function and will be affected.

5. **Conclusion**: The function that will not be affected by the blockage of the pancreatic duct is **A. Maintenance of normal blood sugar level**.

### Final Answer:
**A. Maintenance of normal blood sugar level**