Arrange the components of mammary gland (from proximal to distal). (a) Mammary duct (b) Lactiferous duct (c) Alveoli (d) Mammary ampulla (e) Mammary tubules Choose the most appropriate answer from the options given below.

A (e) $\rightarrow$ (c) $\rightarrow$ (d) $\rightarrow$ (b) $\rightarrow$ (a)

B (c) $\rightarrow$ (a) $\rightarrow$ (d) $\rightarrow$ (e) $\rightarrow$ (b)

C (b) $\rightarrow$ (c) $\rightarrow$ (e) $\rightarrow$ (d) $\rightarrow$ (a)

D (c) $\rightarrow$ (e) $\rightarrow$ (a) $\rightarrow$ (d) $\rightarrow$ (b)

The answer is D.

Solution

Milk flows: alveoli $\rightarrow$ mammary tubules $\rightarrow$ mammary duct $\rightarrow$ mammary ampulla $\rightarrow$ lactiferous duct.

Concept Structure of mammary gland

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