Pronator Teres

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Pronator Teres mm    Pronator Teres: Origin and InsertionPronator Teres

Origin: Medial supracondylar ridge of the humerus. 
Medial side of the coronoid process of the ulna

Insertion: Middle 1/3 of the outer surface of the radius

Actions: Pronation. 
Elbow flexion

Innervation: Median nerve

Daily uses: Turning a screwdriver


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Other muscles of the Upper Limb


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

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