Hormone involved in the discharge of pancretic juice in mammals is

Options

A. Gastrin
B. Cholecystokinin
C. Secretin
D. Enterogastrone.

Explanation

To answer the question regarding the hormone involved in the discharge of pancreatic juice in mammals, we can follow these steps:

### Step 1: Understand the Options
We have four options to consider:
1. Gastrin
2. Cholecystokinin
3. Secretin
4. Enterogastron

### Step 2: Analyze Each Option
- **Gastrin**: This hormone is produced in the stomach and primarily stimulates the secretion of gastric acid. It does not play a role in pancreatic juice secretion.

- **Cholecystokinin (CCK)**: This hormone is released from the duodenum and is responsible for stimulating the gallbladder to release bile. While it does aid in digestion, it is not the primary hormone for pancreatic juice discharge.

- **Secretin**: This hormone is secreted by the S cells in the duodenum. Its main function is to stimulate the pancreas to release bicarbonate and pancreatic juice, which are essential for digestion in the small intestine.

- **Enterogastron**: This hormone is involved in the digestion of fatty foods and is also released from the duodenum. However, it does not directly stimulate the discharge of pancreatic juice.

### Step 3: Identify the Correct Answer
Based on the analysis, the hormone that is specifically involved in the discharge of pancreatic juice in mammals is **Secretin**.

### Final Answer
The hormone involved in the discharge of pancreatic juice in mammals is **Secretin**.

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