| Breasts, also known as mammary glands, are anatomical features that characterize members of the class of vertebrates known as mammals. In the center of the human female breast is the protruding nipple, which is surrounded by a pigmented circular area called the areola. Small glands in and around the nipple provide lubrication and protection against infection, which is particularly important for breast-feeding mothers. Produced by the lobules in the interior of the breast, milk is carried to the nipple by a collection of tubes known as ducts. |
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