What is the term used for direction in which skin most resistance to stretch?

The term used for the direction in which skin offers the most resistance to stretch is Langer's lines. Langer's lines, or tension lines, refer to the natural lines or creases present on the skin's surface. They represent the direction in which the skin has the greatest elasticity and flexibility, indicating the areas where it can be stretched and manipulated with minimal resistance. Understanding Langer's lines is crucial in various surgical and cosmetic procedures, such as scar management, tissue repositioning, and flap design, to ensure optimal healing and aesthetic outcomes.