The breast is the tissue overlying the chest (pectoral) muscles. Women's breasts are made of specialized tissue that produces milk (glandular.
Twitter user @lemonadead shared a realistic illustration of the female muscle system in the torso. It includes milk ducts in each breast, which.
All women have a large, fan-shaped pectoralis major muscle on either side of the chest, directly beneath the breast tissue. A smaller muscle, known as the.