Question

Arrange in sequence the following in mammary gland:
a. Mammary tubule
b. Mammary Ampulla
c. Alveoli
d. Mammary duct
e. Lactiferous duct

• A. c, b, a, e, d
• B. c, a, d, b, e
• C. c, a, e, d, b
• D. c, b, d, a, e

Hint:

Remember: Alveoli secrete milk → Tubules → Ducts → Ampulla stores → Lactiferous duct releases.

Answer 1

The Correct Option is B

The correct flow of milk in the mammary gland begins from the site of secretion and ends at the point of ejection:
- Alveoli (c): These are the milk-secreting structures in the mammary gland.
- Mammary tubule (a): Milk secreted in alveoli is drained into mammary tubules.
- Mammary duct (d): These tubules join to form mammary ducts.
- Mammary ampulla (b): The ducts widen to form the ampulla, a storage region.
- Lactiferous duct (e): Finally, milk is transported through the lactiferous duct to the exterior.
Thus, the correct sequence is: c → a → d → b → e

Answer 2

In the mammary gland, the structures are organized to efficiently produce and transport milk from the secretory units to the nipple. The correct sequence starts from the smallest milk-producing units and moves outward towards the nipple.

The sequence begins with the alveoli (c), which are tiny sac-like structures where milk is produced by specialized epithelial cells. These alveoli are grouped into clusters and connected to small ducts called mammary tubules (a) that collect the milk.

From the mammary tubules, the milk flows into larger channels known as mammary ducts (d), which serve as conduits to transport milk towards larger storage and transport structures.

Next, the milk enters the mammary ampulla (b), which acts as a milk reservoir or dilated portion of the duct system, temporarily storing milk before it is expelled.

Finally, the milk passes through the lactiferous ducts (e), which open at the nipple, allowing milk to be delivered outside the body during breastfeeding.

Therefore, the correct sequence in the mammary gland is alveoli (c), mammary tubule (a), mammary duct (d), mammary ampulla (b), and lactiferous duct (e). This arrangement ensures efficient milk production, storage, and delivery.