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.
Hamstring Overview. The hamstrings are a collection of three muscles located in the back of the thigh that are responsible for bending or flexing the knee. small portion of the hamstring muscle also spans across the hip joint and is involved in hip extension. The hamstring muscle fibers gradually become tendon fibers near the knee to attach to bone. One can appreciate the thick tendon bands when feeling behind the knee joint.