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Published byDomenic Wilson Modified over 9 years ago
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Muscles of the arm and forelimb
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Deltoid muscle in humans Action: Abducts the shoulder Origin: Clavicle and scapula Insertion: Deltoid tuberosity of humerus
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Action: Flexion at the elbow Origin: lateral epicondyle of the humerus Insertion: Styloid process of the radius
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Action: Extension and abduction at wrist Origin: Distal lateral surface and lateral epicondyle of humerus Insertion: Bases of second and third metacarpal bones
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Action: Flexion at the finger joints and wrist Origin: Medial epicondyle of humerus, anterior surface of the radius and ulna, medial and posterior surface of ulna Insertion: Distal phalanges
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Action: pronation Origin: Medial epicondyle of humerus and coronoid process of ulna Insertion: Distal lateral surface of the radius
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Action: Flexion and abduction at wrist Origin: Medial epicondyle of humerus Insertion: Bases of second and third metacarpals
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Action: Flexion at wrist Origin: Medial epicondyle of humerus Insertion: Tendinous sheet on the palm (aponeurosis)
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Action: Flexion and adduction at the wrist Origin: Medial epicondyle of humerus Insertion: Pisiform, hamate and base of 5 th metacarpal
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Action: Extends the forelimb Origin: Latissimus dorsi Insertion: ulna
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Action: Extension at the elbow Origin: Superior, posterior and lateral margins of the humerus and scapula Insertion: Olecranon process of ulna
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Action: Flexion and supination at the shoulder Origin: Short head- corocoid process Long head- supraglenoid tubercle Insertion: Tuberosity of the radius
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