Surgically, the breast is an apocrine gland overlaying the chest – attached at the nipple and suspended with ligaments from the chest – which is integral to the skin, the body integument of the woman. The dimensions and weight of the breasts vary with her age and habitus (body build and physical constitution); hence small-to-medium-sized breasts weigh approximately 500 gm, or less, and large breasts weigh approximately 750–1,000 gm.[14][15][16] Anatomically, the breast topography and the hemispheric locale of the NAC are particular to each woman; thus, the desirable, average measurements are a 21–23 cm sternal distance (nipple to sternum-bone notch), and a 5–7 cm inferior-limb distance (NAC to IMF).