Oxytocin is used to

Options

A. milk ejection
B. Parturition
C. Let down process
D. All of the above

Answer

### Step-by-Step Solution:

1. **Understanding Oxytocin**:
- Oxytocin is a hormone produced by the posterior pituitary gland (neurohypophysis).
- It plays a crucial role in various physiological processes.

2. **Functions of Oxytocin**:
- **Milk Ejection**: Oxytocin is responsible for the ejection of milk from the mammary glands during breastfeeding.
- **Parturition**: It stimulates contractions of the uterus during childbirth, facilitating the delivery process.
- **Let Down Process**: This refers to the release of milk from the breast, which is also mediated by oxytocin.

3. **Analyzing the Options**:
- The question presents four options:
1. Milk ejection
2. Parturition
3. Let down process
4. All of the above
- Since oxytocin is involved in all three processes mentioned, we can conclude that the correct answer includes all of them.

4. **Conclusion**:
- Therefore, the correct answer is **"All of the above"**.