The term "thigh muscles" refers to a group of muscles located in the thigh region, which is responsible for various movements such as walking, running and jumping. These muscles include the quadriceps (rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius), hamstrings (biceps femoris, semitendinosus, and semimembranosus) and adductor magnus. The thigh muscles work together to provide stability, support and strength to the body while performing various activities.