Milk secreted from the cells of alveoli of mammary lobes reaches nipple through lactiferous duct (L), mammary duct (M), mammary tubule (T) and mammary ampulla (A) in the following order

Options

A. TMAL
B. MTLA
C. MTAL
D. ATML.

Answer

To determine the correct order in which milk secreted from the cells of alveoli in the mammary lobes reaches the nipple, we can follow these steps:

1. **Milk Production**: Milk is produced in the alveoli, which are small clusters of cells within the mammary lobes. Each breast contains 15 to 20 mammary lobes.

2. **Milk Storage in Alveoli**: The milk produced in the alveoli is stored in their lumen (the cavity inside the alveoli).

3. **Movement to Mammary Tubules**: The milk then moves from the alveoli into the mammary tubules. This is the first step in the pathway.

4. **Formation of Mammary Ducts**: The mammary tubules from each lobe converge to form a mammary duct. This is the second step in the pathway.

5. **Connection to Mammary Ampulla**: Multiple mammary ducts join together to form a wider structure known as the mammary ampulla. This is the third step in the pathway.

6. **Final Pathway to Lactiferous Duct**: The mammary ampulla connects to the lactiferous duct, which is the final pathway through which milk is expelled from the breast during breastfeeding.

7. **Exit through the Nipple**: Finally, the milk travels through the lactiferous duct and is released through the nipple.

### Correct Order:
1. Mammary Tubule (T)
2. Mammary Duct (M)
3. Mammary Ampulla (A)
4. Lactiferous Duct (L)

### Final Answer:
The correct order is: Mammary Tubule (T) → Mammary Duct (M) → Mammary Ampulla (A) → Lactiferous Duct (L).

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