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Light micrograph of normal female breast (mammary gland) tissue from a non pregnant woman, showing a glandular lobule (pink) surrounded by connective tissue (blue) & adipose tissue (white). Lobules are the milk-secreting areas of the breast, each consisting of an aggregate of branching ducts, alveolar ducts, which end as blind-ended ductules (seen here). Alveolar cells in the walls of the ducts are responsible for manufacturing & secreting milk. It drains into the lactiferous ducts & flows on to the nipple. The lobules are supported by a dense layer of connective tissue & fat. Magnification: x180 at 35mm size.
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