Elbow Muscles

• O: Distal 1/2 of humerus, anterior suface
• I: Coronoid process and ulnar tuberostiy of ulna
• A: Elbow Flexion

• O: long head - supraglenoid tubercle
• short head - coracoid process
• I: Radial Tuberosity
• A: shoulder flexion elbow flexion, forearm supination
• two jointed muscle. strongest 80-100 weakest at 0

• O: lateral supracondylar ridge or the humerus
• I: styloid process of the radius
• A: Elbow Flexion

• O: long head - infraglenoid tubercle
• lateral head - inferior to greater tubercle of posterior humerus
• Medial head - posterior surface of humerus
• I: olecranon process of ulna
• A: elbow extension
• two joint muscle maximum torque at 90 flexion

• O: lateral epicondyle of humerus
• I: lateral and inferior to olecranon process of ulna
• A: not a prime mover in any joint action

it pulls on the annular ligament and keeps it from being pinched in the olecranon fossa during elbow extension

• O: Medial epicondyle humerus and coronoid process ulna
• I:lateral aspect of radius at its midpoint
• A: pronation, assists elbow flexion

• O: distal 1/4 of ulna
• I: Distal 1/4 of raduis
• A: forearm pronation

• O: lateral epicondyle of humerus and adjacent ulna
• I: anterior surface of proximal radius
• A: forearm supination