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Origin: Oblique head: Inferior ramus of pubis and ischial ramus. Vertical head: ischial tuberosity.
Insertion: Oblique head: Gluteal tuberosity, linea aspera and proximal supracondylar ridge of the femur.Vertical head: Adductor tubercle of femur.
Actions: Oblique head: Adducts and flexes thigh at hip. Vertical head : Extends thigh at hip.
Innervation: Oblique head : Obturator nerve (L2-4). Vertical head: Sciatic nerve: L2-4.
Daily uses: Bringing trailing leg into a car.
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
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: Anterior (costal) surface of the scapula
Insertion: Lesser tuberosity of the humerus
Actions: Internal rotation , Adduction
Innervation: Upper and lower subscapular nerves
Daily uses: Tucking the back of your shirt into your trousers