Cleavage occurs naturally between the tissue of the two breasts. We think mostly of well-endowed females as having cleavage, but overweight boys and men can have cleavage too. The "lines of cleavage" are, as a simple description, the line between the clothing or bra and the exposed area of the breast and the "line" or separation between the breasts. So, if a woman wears an ill-fitting bra or one that is too small, the area of cleavage can be pronounced. In smaller bosoms, cleavage is less pronounced or noticeable.
Lines of cleavage are natural planes of separation in the skin that are determined by the orientation of collagen fibers. These lines are important to consider in surgery because incisions made parallel to the lines of cleavage heal better with less scarring compared to incisions made perpendicular to them.
NO CLEAVAGE LINES SHOULD BE MADE PARALLEL. When and incision is made parallel to the cleavage lines, the skin gapes less and heals more readily than when the incision is made across the cleavage lines
Lines of cleavage in the skin are important for surgical incisions, as making incisions parallel to the lines of cleavage can result in less scarring and improved wound healing. Surgeons often try to align incisions along these natural lines to reduce tension and minimize the risk of keloid formation.
cleavage lines
epidermis
That is cleavage.
Cleavage does not always mean nudity. cleavage between two hills was huge.
cleavage
Parallel lines seen on cleavage planes or crystal faces are usually caused by twinning, where two crystals grow together with a specific orientation relationship. This twinning can result in repeated patterns of parallel lines that are visible on the surface of the crystal.
Halite is a cleavage because it splits evenly, but fracture would mean it breaks irregularly.
closes and heals with relatively little scarring-gigi
To heal the wound faster. If the incision is made perpendicular to the cleavage line, more fibrin will be damaged. And also to reduce scalp.