A derecho (/dÉËreÉªtÊoÊ/, from Spanish: derecho [deËÉ¾etÊo], straight) is a widespread, long-lived, straight-line wind storm that is associated with a land-based, fast-moving group of severe thunderstorms. Derechos can cause hurricane-force winds, tornadoes, heavy rains, and flash floods.
In human anatomy, a hamstring is one of the three posterior thigh muscles in between the hip and the knee. In quadrupeds, the hamstring is the single large tendon found behind the knee or comparable area.
Updated July 07, 2016. The hamstring muscles are a group of large, powerful muscles that span the back of the thigh, from the lower pelvis to the back of the shin bone. The hamstring muscles are important in their functions to both extend the hip joint and bend the knee joint.