Skin In women, the breasts overlie the pectoralis major muscles and usually extend from the level of the second rib to the level of the sixth rib in the front of the human rib cage ; thus, the breasts cover much of the chest area and the chest walls. At the front of the chest, the breast tissue can extend from the clavicle collarbone to the middle of the sternum breastbone. At the sides of the chest, the breast tissue can extend into the axilla armpit , and can reach as far to the back as the latissimus dorsi muscle , extending from the lower back to the humerus bone the longest bone of the upper arm. As a mammary gland , the breast is composed of differing layers of tissue , predominantly two types: The suspensory Cooper's ligaments are fibrous-tissue prolongations that radiate from the superficial fascia to the skin envelope. The female adult breast contains 14—18 irregular lactiferous lobes that converge at the nipple.
In , surgeon Vincenz Czerny effected the earliest breast implant emplacement when he used the patient's autologous adipose tissue , harvested from a benign lumbar lipoma , to repair the asymmetry of the breast from which he had removed a tumor. Berson, in , and Jacques Maliniac, in , each performed flap-based breast augmentations by rotating the patient's chest wall tissue into the breast to increase its volume. Furthermore, throughout the s and the s, plastic surgeons used synthetic fillers—including silicone injections received by some 50, women, from which developed silicone granulomas and breast hardening that required treatment by mastectomy. In , the French company Laboratoires Arion developed and manufactured the saline breast implant, filled with saline solution , and then introduced for use as a medical device in The original breast implant: Late-generation models of silicone gel-filled prostheses.
Personal info Measurements Rachel was originally billed as wearing a 32 JJ size bra,  but her breasts were still growing. In a German television show called taff, aired May 22 , , on ProSieben, she went to buy a new bra at Royce Lingerie and was measured again. Her measurements were 74 cm underbust and cm bust , or 42 inches.