Question

Milk is secreted by the alveoli and reaches the nipple through several regions. The correct order of the flow of milk is:

• A. Mammary duct $\rightarrow$ Ampulla $\rightarrow$ Mammary tubule $\rightarrow$ Lactiferous duct
• B. Mammary tubule $\rightarrow$ Mammary duct $\rightarrow$ Ampulla $\rightarrow$ Lactiferous duct
• C. Mammary duct $\rightarrow$ Mammary tubule $\rightarrow$ Ampulla $\rightarrow$ Lactiferous duct
• D. Lactiferous duct $\rightarrow$ Mammary duct $\rightarrow$ Mammary tubule $\rightarrow$ Ampulla

Hint:

Order: Tubule $\rightarrow$ Duct $\rightarrow$ Ampulla (storage) $\rightarrow$ Lactiferous (exit).

Answer 1

The Correct Option is B

Step 1: Concept
The mammary gland consists of glandular tissue organized into lobes containing alveoli where milk is produced.

Step 2: Analysis of the Duct System
Milk produced in the alveoli first enters the mammary tubules. These tubules from each lobe join to form a mammary duct.

Step 3: Flow Path
Several mammary ducts join to form a wider mammary ampulla, which is then connected to the lactiferous duct through which milk is sucked out.

Step 4: Conclusion
The correct order is: Mammary tubule $\rightarrow$ Mammary duct $\rightarrow$ Ampulla $\rightarrow$ Lactiferous duct. Final Answer: (B)