Front | Back |
Biceps Brachii
-Long Head
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Origin: Supraglenoid cavity of scapula
Insertion: Radial tuberosity
Action: Flexion, supination
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Biceps Brachii
-Short Head
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Origin: Coracoid process of scapula
Insertion: Radial tuberosity
Action: Flexion, supination
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Brachioradialis
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Origin: Ridge superior to lateral epicondyle of humerus
Insertion: Styloid process of radius
Action: Flexion
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Brachialis
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Origin: Anterior distal surface of humerus
Insertion: Ulnar tuberosity
Action: Flexion
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Supinator
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Origin: Lateral epicondyle of humerus and ridge near radial notch of ulna
Insertion: Anterolateral surface of radius
Action: Supinates forearm and hand, lateral rotation
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Triceps Brachii
-Lateral Head
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Origin: Superior lateral margin of humerus
Insertion: Olecranon of ulna
Action: Extension
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Triceps Brachii
-Medial Head
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Origin: Posterior surface of humerus, inferior to radial groove
Insertion: Olecranon of ulna
Action: Extension
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Triceps Brachii
-Long Head
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Origin: Infraglenoid tubercle of scapula
Insertion: Olecranon of ulna
Action: Extension and adduction
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Pronator Teres
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Origin: Medial epicondyle of humerus and coronoid process of ulna
Insertion: Middle of lateral surface of radius
Action: Pronator, medial rotation, flexion
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Pronator Quadratus
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Origin: Anaterior and medial surfaces of distal ulna
Insertion: Anterolateral surface of distal portion of radius
Action: Pronator, medial rotation
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