Anterior arm muscles
Posterior Arm muscles
Orgins Insertions and Actions
Supraspinatus- A: Abducts shoulder
O: Scapula
I: Humerus
Infraspinatus- A: External Rotation
O: Scapula
I: Humerus
Teres Minor- A: External Rotation
O: Scapula
I: Humerus
Subscapularis- A: Internal Rotation
O:Scapula
I: Humerus
Triceps Brachii- A: Extends Elbow
Long head O: Scapula I: Ulna
Short Head and Lateral head O: Humerus I: Ulna
Biceps Brachii- A: Flex elbow (Primary) and supinates forearm and hand
O: Scapula
I: Radius
Coracobrachialis- A: Flexes and adducts arm at shoulder
O: Scapula
I: Humerus
Brachialis- A: Flex elbow (secondary)
O: Humerus
I: Ulna
Deltoid- A: Flexes, Extends, internal and external rotation and abduction
O: Clavicle
I: Humerus
Teres Major- A: External Rotation
O: Scapula
I: Humerus
O: Scapula
I: Humerus
Infraspinatus- A: External Rotation
O: Scapula
I: Humerus
Teres Minor- A: External Rotation
O: Scapula
I: Humerus
Subscapularis- A: Internal Rotation
O:Scapula
I: Humerus
Triceps Brachii- A: Extends Elbow
Long head O: Scapula I: Ulna
Short Head and Lateral head O: Humerus I: Ulna
Biceps Brachii- A: Flex elbow (Primary) and supinates forearm and hand
O: Scapula
I: Radius
Coracobrachialis- A: Flexes and adducts arm at shoulder
O: Scapula
I: Humerus
Brachialis- A: Flex elbow (secondary)
O: Humerus
I: Ulna
Deltoid- A: Flexes, Extends, internal and external rotation and abduction
O: Clavicle
I: Humerus
Teres Major- A: External Rotation
O: Scapula
I: Humerus