The correct sequence of the arrangement of following parts in the mammary glands is

Options

A. Mammary alveolus , mammary duct , ampulla and mammary lobe
B. Ampulla, mammary lobes , mammary alveolus and mammary ducts
C. Mammary lobes , mammary ducts mammary alveolus and ampulla
D. Ampulla , mammary duct , mammary alveolus and mammary lobe

Answer

To determine the correct sequence of the arrangement of parts in the mammary glands, we need to analyze the structure and organization of the mammary glands. Here’s a step-by-step breakdown of the arrangement:

### Step 1: Understand the Components of Mammary Glands
The mammary glands consist of several components including:
- Mammary alveolus
- Mammary ducts
- Ampulla
- Mammary lobes

### Step 2: Identify the Function of Each Component
- **Mammary Alveolus**: These are the milk-producing structures where milk is synthesized.
- **Mammary Ducts**: These ducts transport milk from the alveoli to the nipple.
- **Ampulla**: This is a storage area for milk before it is released through the ducts.
- **Mammary Lobes**: These are the larger sections of the mammary gland that contain clusters of alveoli and ducts.

### Step 3: Determine the Sequence of Milk Flow
When milk is produced in the mammary alveoli, it flows through the following sequence:
1. **Mammary Alveolus**: Milk is produced here.
2. **Mammary Ducts**: Milk travels through these ducts.
3. **Ampulla**: Milk is stored here temporarily.
4. **Mammary Lobes**: These encompass the alveoli and ducts, but in terms of flow, they are not the endpoint.

### Step 4: Analyze the Options Provided
Now, we will evaluate the options given in the question:
1. **Mammary Alveolus → Mammary Duct → Ampulla → Mammary Lobe** (Incorrect)
2. **Ampulla → Mammary Lobe → Mammary Alveolus → Mammary Duct** (Incorrect)
3. **Mammary Lobe → Mammary Duct → Mammary Alveolus → Ampulla** (Incorrect)
4. **Ampulla → Mammary Duct → Mammary Alveolus → Mammary Lobe** (Correct)

### Conclusion
The correct sequence of the arrangement of parts in the mammary glands is:
**Ampulla → Mammary Duct → Mammary Alveolus → Mammary Lobe**.