Origin: Outer surface of ilium between the posterior and anterior gluteal lines.
Insertion: Lateral and superior surfaces of the greater trochanter of the femur.
Actions: Abducts thigh at hip; anterior fibres medially rotate thigh and posterior fibres laterally rotate thigh.
Innervation: Superior gluteal nerve (L5, S1)
Daily uses: Stabilising hip through stance phase.
Origin: Posterior surface of the scapula (below the spine of the scapula) .
Insertion: Greater tuberosity on the humerus .
Actions: Shoulder abduction, External rotation.
Innervation: Suprascapular nerve .
Daily uses: Brushing hair.
Origin: Mid section of the lateral border of the scapula
Insertion: Greater tuberosity on the humerus
Actions:External rotation, Shoulder adduction
Innervation: Axillary nerve
Daily uses: Brushing hair
Origin: Supraspinous fossa
Insertion: Greater tuberosity of the humerus
Actions: Abduction Stabilisation of the humerus
Innervation: Suprascapular nerve
Daily uses: Holding shopping bags away from the body