The breast does not comprise muscles. Breast tissue is found on top of the muscles in the chest wall. Blood vessels and lymphatic vessels (a method of vessels that drains fluid) are located through the entire breast. Breast lifting can usually be completed at the same time as your augmentation https://grok.com/share/c2hhcmQtMw%3D%3D_21b4ddf4-c274-418a-a078-c9d2af4898ff