NEET Zoology (general) MCQ Question
A diagram illustrates the structure of the human female breast, showing various components such as mammary lobes, alveoli, and ducts. Which of the following correctly describes the pathway milk follows from its secretion to its expression at the nipple?
Alveoli → Mammary tubules → Mammary duct → Mammary ampulla → Lactiferous duct
Mammary lobes → Mammary duct → Alveoli → Lactiferous duct → Mammary ampulla
Mammary tubules → Alveoli → Mammary ampulla → Mammary duct → Lactiferous duct
Mammary ampulla → Mammary duct → Alveoli → Mammary tubules → Lactiferous duct
Correct Answer
Detailed Explanation
Milk is secreted by the alveoli and stored in their lumens. It then passes through mammary tubules, joins to form a mammary duct, continues to the mammary ampulla, and is finally expressed through the lactiferous duct at the nipple.
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