Cat dissection: Gluteal muscles and the biceps femoris m. have been removed. A probe has elevated the twin gemelli mm. (arrows) and the internal obturator m. (1). The quadratus femoris m. (2) is deep to the probe. The quadriceps femoris m. (3) is labeled. Other muscles include: adductor (4), semimembranosus (5), semitendinosus (6), tensor fasciae latae (7), sartorius (8), and gastrocnemius (9).