Quadratus femoris muscle
| Quadratus femoris muscle | |
|---|---|
The quadratus femoris and nearby muscles | |
Muscles of the gluteal and posterior femoral regions with quadratus femoris muscle highlighted | |
| Details | |
| Origin | Ischial tuberosity |
| Insertion | Intertrochanteric crest |
| Artery | Inferior gluteal artery, medial circumflex femoral artery |
| Nerve | Nerve to quadratus femoris (L4-S1) |
| Actions | Lateral rotation and adduction of thigh[1] |
| Identifiers | |
| Latin | musculus quadratus femoris |
| TA98 | A04.7.02.015 |
| TA2 | 2608 |
| FMA | 22321 |
| Anatomical terms of muscle | |
The quadratus femoris is a flat, quadrilateral skeletal muscle. Located on the posterior side of the hip joint, it is a strong external rotator and adductor of the thigh,[2] but also acts to stabilize the femoral head in the acetabulum. The quadratus femoris is used in Meyer's muscle pedicle grafting to prevent avascular necrosis of femur head.