Secretion of hormone cholecystokinin is for

Options

A. Controlling blood pressure
B. Inducing peristalsis
C. Bile functions
D. Release of insulin

Answer

**Step-by-Step Text Solution:**

1. **Understanding Cholecystokinin (CCK):** Cholecystokinin is a hormone secreted by the enteroendocrine cells located in the duodenum, which is the first part of the small intestine.

2. **Stimulus for Secretion:** The secretion of CCK is stimulated by the presence of partially digested proteins, triglycerides, and fatty acids in the small intestine.

3. **Functions of Cholecystokinin:**
- **Stimulates Pancreatic Juice Secretion:** CCK promotes the secretion of pancreatic juice, which contains digestive enzymes necessary for breaking down food.
- **Stimulates Bile Release:** CCK also stimulates the gallbladder to release bile, which is important for the emulsification and digestion of fats.
- **Induces Satiety:** CCK contributes to the feeling of fullness (satiety), which helps to suppress hunger.

4. **Evaluating the Options:**
- **Controlling Blood Pressure:** This is not a function of CCK. Therefore, this option is incorrect.
- **Inducing Peristalsis:** While peristalsis is important for digestion, it is not directly induced by CCK. Hence, this option is also incorrect.
- **Bile Functions:** CCK does stimulate the secretion of bile, making this option correct.
- **Release of Insulin:** CCK does not play a role in the release of insulin; it primarily stimulates pancreatic juice secretion. Thus, this option is incorrect.

5. **Conclusion:** The correct answer is that the secretion of cholecystokinin is for bile functions.

**Final Answer:** The secretion of hormone cholecystokinin is for bile functions.

---