Brachialis

• Origin: Front of distal Humerus
• Insertion: Coronoid Process of Ulna
• Action: Flexor of Forearm

Coracobrachialis

• Origin: Coracoid Process
• Insertion: Medial surface of Humerus
• Action: Flexion/Abduction of Humerus

Biceps Brachii

• Origin: 
• Insertion: Radial tuberosity
• Action:

Triceps brachii 

• Origin: 
• Insertion: Olecranon process
• Action: Forearm Extensor

Deltoid 

• Origin: Clavicle, Acromion, Spine of Scapula
• Insertion: Deltoid tuberosity
• Action: Arm abduction; Movement of humerus

Pronator quadratus 

• Origin: Distal, anterior ulna
• Insertion: Distal, Anterior radius
• Action: Pronates forearm

 Flexor digitorum profundus

• Origin: Anterior/Medial surface of the ulna; Coronoid process
• Insertion: Phalanges 2-5
• Action: Flexes distal phalanges

 Supinator

• Origin: Lateral epicondyle humerus; proximinal
• Insertion: Proximal radius
• Action: Supinates Forearm

Flexor pollicis longus 

• Origin: Radius
• Insertion: Distal phalanx of thumb
• Action: Flexes thumb

Flexor digitorum superficialis

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