In a functional breast , milk is temporarily stored in:

Options

A. Mammary duct
B. Mammary alveoli
C. Mammary ampullae
D. Lactiferous duct

Answer

To solve the question "In a functional breast, milk is temporarily stored in:", we will analyze the options provided and understand the anatomy of the breast related to milk storage.

### Step-by-Step Solution:

1. **Understanding the Structure of the Breast**:
- The breast contains several structures that are involved in the production and storage of milk. The key components include mammary alveoli, mammary ducts, mammary ampullae, and lactiferous ducts.

2. **Identifying the Function of Each Structure**:
- **Mammary Alveoli**: These are the small sacs where milk is produced. They are the functional units of the breast.
- **Mammary Ducts**: These ducts transport milk from the alveoli to the storage areas.
- **Mammary Ampullae**: These are wider sections of the ducts that serve as temporary storage areas for milk before it moves to the lactiferous ducts.
- **Lactiferous Ducts**: These ducts carry milk from the ampullae to the nipple, where it can be released during breastfeeding.

3. **Determining Where Milk is Temporarily Stored**:
- The question specifically asks where milk is temporarily stored in a functional breast. While milk is produced in the mammary alveoli, it is not stored there. Instead, it is stored in the mammary ampullae before being transported to the lactiferous ducts.

4. **Final Answer**:
- Based on the understanding of the breast's anatomy, the correct answer is **mammary ampullae**. This is where milk is temporarily stored before it is released through the lactiferous ducts.

### Conclusion:
In a functional breast, milk is temporarily stored in the **mammary ampullae**.