Figure 1. The Hip Extensors

The hip or thigh extensors consist primarily of 4 muscles located in the buttocks region and behind the thigh. Their names are:

1) Gluteus Maximus
2) Semimembranosus
3) Semitendinosus
4) Long Head of Biceps Femoris

Note: The Semimembranosus, Semitendinosus and Biceps Femoris are commonly known as the hamstrings.