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Musculoskeletal Anat
Hip & Thigh muscles, origins, insertions, and actions
| Muscle | Origin | Insertion | Action |
|---|---|---|---|
| Gluteus minimus | Ilium | Greater trochanter of femur | Thigh abduction, and medial rotation @ hip |
| Piriformis | Sacrum | Greater trochanter of femur | Thigh lateral rotation @ hip |
| Semimembranosus | Ischial tuberosity of ischium | Medial condyle of tibia | Thigh extension, medial rotation @ hip, and leg flexion @ knee |
| Semitendinosus | Ischial tuberosity of ischium | Medial condyle of tibia | Thigh extension, medial rotation @ hip, and leg flexion @ knee |
| Biceps femoris | Ischial tuberosity of ischium (long head) Linea aspera of femur (short head) | Head of fibula Lateral condyle of tibia | Thigh extension, lateral rotation@ hip, and leg flexion @ knee |
| Adductor brevis | Pubis | Linea aspera of femur Posterior femur | Thigh adduction, flexion, and medial rotation @ hip |
| Adductor longus | Pubis | Linea aspera of femur Posterior femur | Thigh adduction, flexion, and medial rotation @ hip |
| Adductor magnus | Pubis | Linea aspera of femur Posterior femur | Thigh adduction, flexion, and medial rotation @ hip |
| Pectineus | Pubis | Linea aspera of femur Posterior femur | Thigh adduction, flexion, and medial rotation @ hip |
| Gracilis | Pubis | Proximal medial tibia | Thigh adduction, flexion, and medial rotation @ hip |
| Iliopsoas (made of iliacus and psoas major muscles) | Ilium (iliacus) Lower vertebrae (psoas major) | Lesser trochanter of femur | Thigh flexion @ hip Trunk flexion @ hip Lateral flexion of vertebral column @ intervertebral joints (psoas major only) |
| Sartorius | Anterior superior iliac spine (ASIS) of ilium | Proximal medial tibia | Thigh flexion, abduction, and lateral rotation @ hip Weak leg flexion @ knee |
| Tensor fasciae lantae | Iliac crest Anterior superior iliac spine (ASIS) of ilium | Iliotibial (IT) tract (band) | Thigh flexion, abduction, and medial rotation @ hip |
| Rectus femoris (part of Quads) | Anterior superior iliac spine (ASIS) of ilium Acetabulum of os coxa | Tibial tuberosity of tibia via patella tendon | Thigh flexion @ hip Leg extension @ knee |
| Vastus lateralis (part of Quads) | Proximal femur | Tibial tuberosity of tibia via patella tendon | Leg extension @ knee |
| Vastus intermedius (part of Quads) | Proximal femur | Tibial tuberosity of tibia via patella tendon | Leg extension @ knee |
| Vastus medialis (part of Quads) | Proximal femur | Tibial tuberosity of tibia via patella tendon | Leg extension @ knee |
| Gluteus maximus | Ilium Sacrum Coccyx | Gluteal tuberosity of femur, Iliotibial (IT) tract (band) | Thigh extension, abduction, and lateral rotation @ hip |
| Gluteus medius | Ilium | Greater trochanter of femur | Thigh abduction, and medial rotation @ hip |