![symbol for female anatomy symbol for female anatomy](https://thumbs.dreamstime.com/z/human-lungs-sign-symbol-female-figure-shape-vector-illustration-isolated-human-lungs-sign-female-figure-shape-vector-171798645.jpg)
The fatty tissue determines the size of the breast. The fatty tissue fills the space between glandular (lobes and ducts) and fibrous (ligaments) tissue. Fatty tissueįatty tissue, along with fibrous tissue, makes up the connective tissue that holds all the structures within the breasts in place. However, a part of the mammary gland, known as the axillary tail, extends to the axilla, which is the region below the armpits. The mammary glands are predominantly located in the pectoral region of the chest. It is an apocrine type of gland and its main function in females is to secrete milk. The mammary glands are accessory glands present in the chest with specialized functions. Most breast cancers start in the terminal ducts and are known as ductal cancers. There are many terminal ductal lobular units present in the breast. A collection of lobules along with a duct form the terminal ductal lobular unit. The ducts are the tubes that carry milk from the lobules to the nipple. Male breasts typically lack lobules, as they do not produce milk. Some breast cancers start in the lobules and are known as lobular cancers.
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There are between 15–20 lobes embedded in the breasts’ fatty tissue, and they radiate around the nipple. The lobules are in clusters and form lobes. The lobules are glands that are responsible for producing milk in the breast. They are present underneath the breasts and provide support. The pectoral muscles make up the chest muscles. It also helps to support breathing and the movement of the upper arms and shoulders. The bones that make up the chest wall include the ribs, the breastbone (which a person can feel in between the breasts), and the spine. The chest wall includes the bones, skin, fat, muscles, and various other tissues that protect the organs between the neck and the abdomen. Different structures make up the breasts, including structures underneath the skin.