Vastus Intermedius

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Vastus Intermedius         Vastus Intermedias: Origin and InsertionVastus Intermedius

Origin: Anterior and lateral surfaces of shaft of femur

Insertion: Quadriceps tendon onto base of patella and onto the tibial tuberosity via the patella tendon.

Actions: Knee extension.

Innervation: Femoral nerve (L2-4)

Daily uses: Walking upstairs. 


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Other muscles…


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.

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: 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

More Anatomy

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Check out strengthening exercises for the rotator cuff

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    Each patient is different and no two will be the same so you will need to clinically reason each choice. For the following questions consider your patient to be normal with no complications.

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