Thigh is the area between the hip and the knee. There are a few groups of muscles in the thigh. Anterior group include pectineus, satorius and quadriceps (rectus femoris, vastus medialis, vastus intermedius and vastus lateralis. Posterior group includes hamstring muscles (semimembranosus, semitendinosus and biceps femoris. Medial group include adductor magnus, adductor longus and adductor brevis and gracilis. The lateral is tensor fasciae which continues with iliotibial tract. The iliotibial tract, also known as the iliotibial band, is a thick strip of connective tissue connecting several muscles in the lateral thigh. It arises at its proximal end from the tendons of the tensor fasciae latae and gluteus maximus muscles and then travels along the lateral side of the thigh and across the knee joint, inserting on the lateral epicondyle of the tibia.
