All of the following hormones are released from GIT except:

Options

A. Gastrin
B. CCK
C. Erythropoetin
D. Secretin

Answer

To solve the question "All of the following hormones are released from GIT except," we will analyze each of the given hormones to determine their origin.

### Step-by-Step Solution:

1. **Identify the Hormones**: The hormones mentioned in the question are Gastrin, CCK (Cholecystokinin), Erythropoietin, and Secretin.

2. **Understand GIT**: GIT stands for Gastrointestinal Tract. We need to identify which of these hormones are secreted from the GIT.

3. **Analyze Each Hormone**:
- **Gastrin**: This hormone is produced by G cells in the stomach and stimulates gastric acid secretion. It is indeed released from the GIT.
- **Cholecystokinin (CCK)**: This hormone is released by the cells in the duodenum (the first part of the small intestine) and stimulates the gallbladder to release bile and the pancreas to release digestive enzymes. It is also released from the GIT.
- **Secretin**: This hormone is secreted by the S cells of the duodenum in response to acidic chyme entering the small intestine. It stimulates the pancreas to release bicarbonate to neutralize stomach acid. Secretin is released from the GIT.
- **Erythropoietin**: This hormone is primarily produced by the kidneys and is responsible for stimulating the production of red blood cells in the bone marrow. It is not released from the GIT.

4. **Conclusion**: Based on the analysis, the hormone that is not released from the GIT is **Erythropoietin**.

### Final Answer:
Erythropoietin is the hormone that is not released from the GIT.

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