Which of the following statements is not correct?

Options

A. Oxyntic cells are present in the mucosa of stomach and secrete HCI.
B. Acini are present in the pancreas and secrete carboxypeptidase
C. Brunner's glands are present in the submucosa of stomach and secrete pepsinogen
D. Goblet cells are present in the mucosa of intestine and secrete mucus

Answer

To determine which statement is not correct, we will analyze each option one by one.

### Step-by-Step Solution:

1. **Analyze Option 1**:
- Statement: "Oxintic cells are present in the mucosa of stomach and secrete HCl."
- Explanation: Oxintic cells, also known as parietal cells, are indeed located in the gastric mucosa of the stomach and are responsible for secreting hydrochloric acid (HCl).
- Conclusion: This statement is **correct**.

2. **Analyze Option 2**:
- Statement: "Acini are present in the pancreas and secrete carboxypeptidase."
- Explanation: Acini are clusters of cells in the pancreas that perform exocrine functions, including the secretion of digestive enzymes like carboxypeptidase.
- Conclusion: This statement is **correct**.

3. **Analyze Option 3**:
- Statement: "Brunner's glands are present in the mucosa of stomach and secrete pepsinogen."
- Explanation: Brunner's glands are actually located in the submucosa of the duodenum (the first part of the small intestine), not in the stomach. They secrete alkaline mucus, not pepsinogen. Pepsinogen is secreted by chief cells in the stomach.
- Conclusion: This statement is **incorrect**.

4. **Analyze Option 4**:
- Statement: "Goblet cells are present in the mucosa of intestine and secrete mucus."
- Explanation: Goblet cells are indeed found in the intestinal mucosa and are responsible for secreting mucus, which helps protect the intestinal lining and facilitate the passage of food.
- Conclusion: This statement is **correct**.

### Final Answer:
The statement that is **not correct** is **Option 3**: "Brunner's glands are present in the mucosa of stomach and secrete pepsinogen."