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Biology · HUMAN REPRODUCTION

हिन्दी

Which of the following represents the correct sequence of milk-conducting passages in the human mammary gland from the site of production towards the nipple?

  1. Mammary alveolus → Mammary tubule/duct → Mammary ampulla → Lactiferous duct
  2. Mammary alveolus → Mammary ampulla → Mammary duct → Lactiferous duct
  3. Lactiferous duct → Mammary ampulla → Mammary duct → Mammary alveolus
  4. Mammary alveolus → Lactiferous duct → Mammary ampulla → Mammary duct

Correct answer · Option 1

Mammary alveolus → Mammary tubule/duct → Mammary ampulla → Lactiferous duct

Explanation

As depicted in the sectional view of the mammary gland (Figure 2.4), milk is produced in the mammary alveoli, flows through mammary ducts, expands into the mammary ampulla, and finally drains through the lactiferous duct from which milk is sucked out.
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