The breast is an organ whose structure reflects its special function: the production of milk for lactation breast feeding. The epithelial component of the tissue consists of lobuleswhere milk is made, which connect to ducts that lead out to the nipple. Most cancers of the breast arise from the cells which form the lobules and terminal ducts.
The breast is one of two prominences located on the upper ventral region of the torso of primates. In females, it serves as the mammary glandwhich produces and secretes milk to feed infants. At pubertyestrogensin conjunction with growth hormonecause breast development in female humans and to a much lesser extent in other primates.
Breast development happens in certain stages during a woman's life: first before birth, again at puberty, and later during the childbearing years. This starts with a thickening in the chest area called the mammary ridge or milk line. By the time a baby girl is born, nipples and the beginnings of the milk-duct system have formed.
As you learn about breast cancer, we will repeatedly reference the anatomy of the breast. Understanding the different parts and functions will help you better grasp the details of breast cancer. The female breast is mostly made up of a collection of fat cells called adipose tissue.
Normal breast tissue often feels nodular lumpy and varies in consistency from woman to woman. Even within each individual woman, the texture of breast tissue varies at different times in her menstrual cycle, and from time to time during her life. Understanding the normal anatomy of the breast will help you to become familiar with the normal feel of your own breast, and to gain confidence in your ability to do BSE correctly; you will be able to distinguish between suspicious new lumps and ordinary breast tissue that sometimes feels lumpy.
The breast consists of three main components, the skin, the subcutaneous adipose tissue and the functional glandular tissue that comprises both parenchyma and stroma. The collecting ducts open at the nipple through which the infant obtains milk during breastfeeding. Below the nipple, the collecting ducts dilate to form the lactiferous sinuses.
The breasts are specialised organs, which are located on the anterior chest wall. The female breast is more developed than the male breast, as their primary function is to produce milk for nutrition of the infant and baby. There are lots of glands in our breasts, which grow and develop during puberty and maturation.
A worried mother brings her 11 year old daughter to a clinic complaining that she has noticed a hard lump behind her one nipple. There is nothing abnormal to be felt on the other side. A woman of 22 years of age complains of painful breasts every month before her period.
One of the most remarkable things about the breast is it is the only organ you are not born with. When you add the hormones of puberty your nipple grows and then behind it a whole organ forms. When a woman becomes pregnant the hormones take the breast tissue to the next level, ready to turn blood into milk to feed the child. Once its job is over, the breast then cleans up all the milk making cells and ducts, and makes new ones so it will be ready for the next child.