Arrange the following in a sequence of milk reaching the nipple.
A) Mammary ampulla
B) Lactiferous duct
C) Mammary duct
D) Alveoli
E) Lumens of alveoli
F) Mammary tubule

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D $\to$ E $\to$ F $\to$ C $\to$ A $\to$ B

B $\to$ C $\to$ E $\to$ A $\to$ D $\to$ F

A $\to$ B $\to$ C $\to$ D $\to$ E $\to$ F

D $\to$ E $\to$ F $\to$ C $\to$ B $\to$ A

answer is B.

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Detailed Solution

The mammary glands are paired structures (breasts) that contain glandular tissue and variable amount of fat. The glandular tissue of each breast is divided into 15-20 mammary lobes containing clusters of cells called alveoli. The cells of alveoli secrete milk, which is stored in the cavities (lumens) of alveoli. The alveoli open into mammary tubules. The tubules of each lobe join to form a mammary duct. Several mammary ducts join to form a wider mammary ampulla which is connected to lactiferous duct through which milk is sucked out.

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