CCK is-secreted by

Options

A. Duodenum
B. Pyloric part of stomach
C. Caecum
D. Rectum

Answer

**Step-by-Step Solution:**

1. **Identify the Hormone:** The question asks about CCK, which stands for cholecystokinin pancreozyme.

2. **Understand the Source of CCK:** CCK is secreted by the small intestine, specifically from the duodenum, which is the first part of the small intestine.

3. **Recognize the Function of CCK:** The primary function of CCK is to stimulate the gallbladder to contract and release bile, and to stimulate the pancreas to secrete digestive enzymes.

4. **Evaluate the Options:** The options provided in the question likely include various organs. We need to determine which organ is responsible for the secretion of CCK.

5. **Select the Correct Answer:** Since CCK is secreted by the small intestine (duodenum), the correct answer is the first option that refers to the small intestine.

**Final Answer:** CCK is secreted by the small intestine (duodenum).

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