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Gluteal Muscles
11.3 -- Muscle Groups
| Term | Definition |
|---|---|
| Iliopsoas | Psoas Major, Iliacus |
| Psoas Major | Origin: Transverse Processes of Lumbar Vertebrae Insertion: Femur, trochanter Action: Flex thigh at hip, rotate laterally, flex trunk. |
| Iliacus | Origin: Iliac fossa and Sacrum Insertion: Femur, trochanter Action: Flex thigh at hip, rotate laterally, flex trunk |
| Gluteus Maximus | Origin: Iliac crest, sacrum, cocyx, aponeurosis of sacrospinalis Insertion: Iliotibial tract of fascia lata and superior lateral part of linea aspera (gluteal tuberosity) on femur Action: Extends thigh at hip join, lateral rotation |
| Gluteus Minimus and Medius | Origin: Ilium Insertion: Greater trochanter of femur Action: Thigh abduction at hip joint and medial rotation. |
| Tensor Fasciae Latae | Origin: Iliac crest Insertion: Tibia by IT tract Action: Flexes and abducts thigh |
| Piriformis | Origin: Anterior sacrum Insertion: Superior border of greater trochanter Action: Lateral rotation and abduction |
| Obturater internus | Origin: Inner surface of obturater foramen Insertion: medial surface of greater trochanter Action: Lateral rotation and abduction |
| Obturater Externus | Origin: Outer surface of obturator membrane Insertion: Depression inferior to greater trochanter Action: Lateral rotation and abduction |
| Superior gemmulus | Origin: Ischial spine Insertion: Medial surface of greater trochanter of femur Action: Lateral roation and abduction |
| Inferior Gemmulus | Origin: Ischial tuberosity Insertion: Medial surface of greater trochanter Action: Lateral rotation and abduction |
| Quadratus Femoris | Origin: Ischial tuberosity Insertion: Elevation on intertrocanteric crest (posteriro) Action: Lateral rotation and hip joint |