etching. 1. A process in which a special needle is used to draw a design on a metal plate overlaid with wax. The plate is then treated with acid, inked, and finally used to print reproductions of the design.
Collateral Ligaments. These are found on the sides of your knee. The medial or inside collateral ligament (MCL) connects the femur to the tibia. The lateral or outside collateral ligament (LCL) connects the femur to the smaller bone in the lower leg (fibula).The collateral ligaments control the sideways motion of your knee and brace it against unusual movement.hese are found on the sides of your knee. The medial or inside collateral ligament (MCL) connects the femur to the tibia. The lateral or outside collateral ligament (LCL) connects the femur to the smaller bone in the lower leg (fibula).
UCL Injury Overview. The ulnar collateral ligament (UCL) of the elbow is a structure that is critical for elbow stability. The UCL is a triangular, thick section of tissue that maintains a healthy and normal valgus relationship between the arm bone (humerus) and the ulna (one of the bones found in the forearm). An ulnar collateral ligament injury can range from a mild stretch to a full tear. An ulnar collateral ligament tear is usually the result of a sports injury that involves repetitive overuse associated with pitching or throwing.