The quadratus femoris is a muscle of the gluteal region in the lower limb. It is the most inferior of the deep gluteal muscles, located below the gemelli and obturator internus. Attachments: Originates from the lateral aspect of the ischial tuberosity and attaches to the quadrate tuberosity on the intertrochanteric crest. Actions: Lateral rotation of the lower limb. Innervation: Nerve to quadratus femoris. Blood Supply: Inferior gluteal artery and medial circumflex femoral artery By TeachMeSeries Ltd (2025) Fig 1The deep muscles of the gluteal region. Pro Feature - 3D Model You've Discovered a Pro Feature Access our 3D Model Library Explore, cut, dissect, annotate and manipulate our 3D models to visualise anatomy in a dynamic, interactive way. Learn More Print Article Rate This Article