If you ask what the breast is, there may be a lot of people who have a certain understanding of this. The mammary gland is actually a kind of organization inside the human body, it is very important to the human body. Here we are going to know about the structure of the breast, what is the effect of the breast and how to prevent the breast disease.
The breast is located between the superficial and deep layers of the superficial subcutaneous fascia. The superficial fascia extends into the breast tissue to form a stripe like interlobular septa, one end connects to the pectoral fascia, the other end connects to the skin, and the mammary gland is fixed in the subcutaneous tissue of the chest.
The fibrous connective tissue, which supports the position of the breast, is called the mammary suspension ligament or the Coopers ligament. The deep fascia of the superficial fascia is located in the deep surface of the mammary gland, which is connected with the loose tissue between the superficial layer of the pectoralis major fascia, which is called the posterior Intermammary space. It can make the breast relatively fixed, and also have a certain mobility on the chest wall. Sometimes, some glands of mammary gland can penetrate through the loose tissue and penetrate into the superficial layer of pectoralis major. Therefore, when pectoralis major muscle and radical operation are performed, the pectoralis major muscle and the muscles should be removed together. The fibrous connective tissue extends into the breast tissue and forms many spacers. Therefore, in acute mastitis, the septic cavity is often separated by several. These fibrous connective tissues play a fixed role in the breast, making the breast not drooping when standing, so it is called the mammary suspending ligament. When it comes to breast cancer, the tumor can invade this ligament and make it shrink, so the breast is sunken and forms "orange skin".
The gland of the breast is composed of 15~20 gland leaves. Each gland leaf is divided into several gland lobules, and each gland leaflet is composed of 10~100 acinus. These acinus are closely arranged around the small milk duct, and the opening of the alveolus is connected with the small milk duct. Breast produce milk in the role of prolactin, so as to provide food for young. In humans, luteinizing and prolactin promote the terminal ducts of mammary lobules to develop into small acinus. After childbirth, the secretion of prolactin increased greatly, and the breast began to lactation.