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Sartorius       Sartorius: Origin and InsertionSartorius

Origin: Anterior superior iliac spine and the area just below it.

Insertion:  Proximal tibia medial to tibial tuberosity (part of pes anserinus)

Actions: Flexes, abducts and laterally rotates thigh at hip ( Also flexes leg a knee).

Innervation: Femoral nerve (L2-3)

Daily uses: Crossing ones legs.


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Other muscles of the Rotator Cuff


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


Teres Minor

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

More Anatomy

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Check out strengthening exercises for the rotator cuff


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