Adductor Magnus

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Adductor Magnus   Adductor Magnus Adductor Magnus: Origin and Insertion

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.

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Other muscles…

Supraspinatus

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

Subscapularis

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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Ligaments

Check out strengthening exercises for the rotator cuff

 

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