Release of milk from mother's breast is mediated through

Options

A. Prolactin
B. Relaxin
C. Oxytocin
D. Progesterone.

Answer

To answer the question regarding the release of milk from the mother's breast, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Context**: The question asks about the release of milk from the mother's breast after delivery. This process is crucial for breastfeeding and involves specific hormones.

2. **Identifying Relevant Hormones**: Several hormones are involved in the processes related to childbirth and lactation. The key hormones to consider are:
- **Progesterone**: Maintains the uterine lining during pregnancy.
- **Relaxin**: Helps in relaxing the cervix and pelvic muscles for smooth delivery.
- **Prolactin**: Stimulates milk production during pregnancy.
- **Oxytocin**: Responsible for the contraction of the uterus during childbirth and also plays a significant role in the release of milk.

3. **Focusing on Milk Release**: While prolactin is important for milk production, the actual release of milk (let-down reflex) is primarily mediated by oxytocin. Oxytocin is released from the pituitary gland and triggers the contraction of the myoepithelial cells surrounding the milk ducts, facilitating the ejection of milk.

4. **Conclusion**: Based on the roles of these hormones, the hormone that mediates the release of milk from the mother's breast is **oxytocin**.

### Final Answer:
The release of milk from the mother's breast is mediated through **oxytocin**.

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