| Piriformis | Origin: Anterior Surface of the Sacrum
Insertion: Greater Trochanter (of Femur)
Action: Laterally rotates thigh at hip
Innervation: Major Nerve of the Sacral Plexus |
| Pectineus | Origin: Superior Ramus of Pubis
Insertion: Posterior Femur (Just inferior to lesser trochanter)
Action: Adducts and Flexes thigh at hip
Innervation: Obturator Nerve |
| Adductor Longus | Origin: Anterior Pubis near Symphysis
Insertion: Linea Aspera
Action: Adducts Thigh at hip
Innervation: Obturator Nerve |
| Adductor Brevis | Origin: Anterior Pubis and Inferior ramus of Pubis
Insertion: Proximal Linea Aspera
Action: Adducts thigh at hip
Innervation: Obturator Nerve |
| Gracilis | Origin: Inferior ramus of pubis
Insertion: Medial Surface of proximal Tibia
Action: Adducts thigh at hip and flexes leg at knee
Innervation: Obturator Nerve |
| Adductor Magnus *** | Origin: Inferior ramus of Pubis, Ischial Ramus, and Ischial Tuberosity
Insertion: Linea Aspera; posterior Femur, (small part splits off and inserts on )ADDUCTOR TUBERCLE
Action: Adducts and extends thigh at hip (small part)
Innervation: Obturator Nerve, (small part) Sciatic Nerve |
| Psoas Major | Origin: Bodies and Transverse Processes of of Lumbar Vertebrae
Insertion: Lesser Trochanter (femur)
Action: Flexes thigh at the hip
Innervation: Lumbar Ventral Rami |
| Iliacus | Origin: Iliac Fossa
Insertion: Lesser Trochanter (femur)
Action: Flexes thigh at hip
Innervation: Femoral Nerve |
| Gluteus Maximus | Origin: Posterior Ilium, Sacrum, Sacrotuberous ligament, Coccyx
Insertion: Iliotibial Tract and gluteal Tuberosity (femur)
Action, Extends and laterally rotates the thigh at hip
Innervation: Inferior Gluteal Nerve |
| Gluteus Medius | Origin: lateral surface of the ilium
Insertion: Greater Trochanter
Action: Abducts thigh at hip
Innervation:: Superior Gluteal Nerve |
| Gluteus Minimus | Origin: Lateral Surface of Ilium (inferior to gluteus Medius)
Insertion: Greater Trochanter
Action: Abducts and medially rotates hip
Innervation: Superior Gluteal Nerve |
| Tensor Fasciae Latae (and Iliotibial Tract) | Origin: Iliac Crest and ASIS
Insertion: Iliotibial Tract
Action: Abducts and flexes thigh at the hip
Innervation: Superior Gluteal Nerve |
