| Term | Definition |
|
Piriformis |
Origin - Sacral and caudal vertebrae. Insertion - Greater trochanter of femur. Action - Abducts thigh. |
|
Gluteus minimus |
Origin - Ventral half of ilium. Insertion - Greater trochanter of femur. Action - Rotates thigh. |
|
Gemellus superior |
Origin - ilium and ischium. Insertion - Greater trochanter of femur. Action - Rotates and abducts thigh. |
|
Obturator internus |
Origin - Ramus of ischium. Insertion - Tendon of obturator internus. Action - Abducts thigh. |
|
Gemellus inferior |
Origin - Lateral surface of the ischium. Insertion - Tendon of obturator internus. Action - Abducts thigh. |
|
Quadratus femoris |
Origin - Tuberosity of ischium. Insertion - Greater and lesser trochanter. Action - Extends and rotates thigh. |
|
Obturator externus |
Origin - Ramus of pubis and ischium. Insertion - Trochanteric fossa of femur. Action - Rotates and flexes thigh. |