A functional mammary gland is characteristic of all female mammals. The glandular tissue of each breast is divided into __________A__________ containing clusters of cells called alveoli. The cells alveoli secrete milk, which stored in the cavities (lumens) of alveoli. The alveoli open into __________B__________. The __________B__________ of each lobe join to form a __________C__________. Several __________C__________ join to form a wider __________D__________ which is connected to __________E__________ through which milk is sucked out.

Options

A. `{:("A","B","C","D","E"),("7-","mammary","mammary","mammary","lactiferous"),("8","duct","ampulla","tubules","duct"):}`
B. `{:("A","B","C","D","E"),("15-","mammary","mammary","lactiferous","mammary"),("20","ampulla","duct","duct","tubules"):}`
C. `{:("A","B","C","D","E"),("15-","mammary","mammary","mammary","lactiferous"),("20","tubules","ampulla","ampulla","duct"):}`
D. `{:("A","B","C","D","E"),("7-","mammary","mammary","lactiferous","mammary"),("8","duct","ampulla","duct","tubules"):}`

Answer

To solve the question regarding the structure of the mammary gland in female mammals, we will fill in the blanks step by step.

### Step-by-Step Solution:

1. **Identify the structure of the mammary gland**: The mammary gland is made up of glandular tissue that is organized into lobes.
- **Fill in Blank A**: The glandular tissue of each breast is divided into **mammary lobes** containing clusters of cells called alveoli.

2. **Understand the function of alveoli**: The alveoli are the functional units of the mammary gland where milk is produced and stored.
- **Fill in Blank B**: The alveoli open into **mammary tubules**.

3. **Connect the mammary tubules to larger structures**: The mammary tubules collect the milk from the alveoli and lead to larger ducts.
- **Fill in Blank C**: The mammary tubules of each lobe join to form a **mammary ampulla**.

4. **Combine the ampullae**: Several mammary ampullae come together to form a wider structure.
- **Fill in Blank D**: Several mammary ampullae join to form a wider **mammary ampulla** (note: this is a repeat of the previous term, but it signifies the same structure).

5. **Final connection to the outside**: The mammary ampulla connects to the duct through which milk is expelled.
- **Fill in Blank E**: This is connected to the **lactiferous duct** through which milk is sucked out.

### Final Answers:
- A: mammary lobes
- B: mammary tubules
- C: mammary ampulla
- D: mammary ampulla
- E: lactiferous duct