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With a suitable diagram, describe the organisation of mammary gland.

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Mammary glands are paired structures which contain glandular tissue and a variable amount of fat.

 

  • Glandular tissue present in each breast is made up of 15 - 20 mammary lobes. These lobes have clusters of cells known as alveoli.
  • Milk, stored in the cavities (lumens) of alveoli, is secreted from the cells of alveoli. The alveoli open in mammary tubules.
  • Tubules from each lobe join to form a mammary duct.
  • Many mammary ducts join to form a wider mammary ampulla.
  • A mammary ampulla is connected to the lactiferous duct. Milk is sucked out through the lactiferous duct.
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