Posterior hip: external/gluteal muscles Superficial: extensors and abductors of the thigh

Question 1

gluteus maximus

Answer 1

• origin: posterior gluteal line, posterior surface of sacrum and coccyx, sacrotuberous ligament
• insertion: upper fibers: iliotibial tract; lowermost fibers: gluteal tuberosity of the femur
• action: extends the thigh; laterally rotates the femur

Question 2

gluteus medius

Answer 2

• origin: external surface of the ilium between the posterior and anterior gluteal lines
• insertion: greater trochanter of the femur
• action: abducts the femur; medially rotates the thigh

Question 3

gluteus minimus

Answer 3

• origin: external surface of the ilium between the anterior and inferior gluteal lines
• insertion: greater trochanter of the femur
• action: abducts the femur; medially rotates the thigh
• steadies pelvis o leg when on leg is raised from the ground together with medius