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The breasts are made up of fat, connective tissue and glandular tissue. They have lobes where breast milk is made and ducts that connect the lobes to the nipple.
Lymph nodes close to the breast.
View a large copy of the diagram of the lymph nodes near the breast.|
Structure of the breast.
View a large copy of the diagram of the structure of the breast|
A woman's breasts are rarely the same size as each other, and may feel different at different times of the menstrual cycle, sometimes becoming lumpy just before a period.
Under the skin, an area of breast tissue extends into the armpit (axilla). The armpits also contain a collection of lymph nodes (lymph glands), which are part of the lymphatic system.
There are also lymph nodes just beside the breastbone and behind the collarbones.
Content last reviewed: 1 January 2011
Next planned review: 2013
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