Nipple (Female): Anatomy and Function
What is the nipple? The nipple (mammilla) rises in the center of the circular, dark-toned areola that forms the center of the breast. The 12 to 15 milk ducts, which widen under the nipple and areola to form milk sacs and then rise vertically in the nipple, open outward in the coves of the nipple … Nipple (Female): Anatomy and Function