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34 Cards in this Set
- Front
- Back
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Brachial muscles
(Posterior compartment) |
Triceps
Anconeus |
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Triceps
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O: Long head: Infraglenoid tubercle
Medial head: Just distal to the radial groove Lateral head: Just medial to the radial groove I: Olecranon process, Forearm fascia A: Extends the elbow The long head also extends the glenohumeral joint |
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Anconeus
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O: Lateral epicondyle
I: Lateral surface of olecranon process, Posterior ulna A: weak extensor of elbow |
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Flexor-Pronator group
(superficial layer) |
Pronator teres
Flexor carpi radialis Palmaris longus Flexor carpi ulnaris |
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Pronator teres
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O: Medial epicondyle, Coronoid process
I: Middle 1/2 of lateral surface of radius A: Pronates forearm, weak elbow flexion |
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Flexor carpi radialis
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O: Medial epicondyle
I: Base of the 2nd metacarpal A: Radial deviation, Wrist flexion |
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Palmaris longus
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O: Medial epicondyle
I: Palmar aponeurosis A: Wrist flexion, Tightens palmar fascia |
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Flexor carpi ulnaris
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O: Medial epicondyle, Olecranon, Posterior Ulna
I: Pisiform, Hook of hamate, Base of the 5th metacarpal A: Wrist flexion, ulnar deviation |
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Flexor-Pronator group
(Intermediate layer) |
Flexor digitorum superficialis
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Flexor digitorum superficialis
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O: Medial epicondyle, Ulnar collateral ligament, Coranoid process, Proximal 1/2 of Radius
I: Splits and inserts on the base of the middle phalanges A: Flexion at proximal interphalangeal joints, if there's a strong contraction then the wrist will flex |
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Extensor-Supinator group
(superficial layer) |
Brachioradialis
Extensor carpi radialis longus Extensor carpi radialis brevis Extensor digitorum Extensor digiti-minimi Extensor carpi ulnaris |
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Brachioradialis
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O: Proximal 2/3 of lateral supracondylar ridge on humerus
I: Distal radius just proximal to the styloid process A: Flexion of the elbow while in neutral |
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Extensor carpi radialis longus
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O: Lateral supracondylar ridge
I: Base of the 2nd metacarpal A: Wrist extension, Radial deviation |
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Extensor carpi radialis brevis
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O: Lateral epicondyle
I: Base of the 3rd metacarpal A: Wrist extension, Radial deviation |
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Extensor digitorum
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O: Lateral epicondyle
I: Extensor expansions of 2-5 digits A: Extension of digits 2-5, Wrist extension |
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Extensor digiti-minimi
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O: Lateral epicondyle
I: Extensor expansion of 5th digit A: Extension of 5th digit, Helps with wrist extension |
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Extensor carpi ulnaris
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O: Posterior border of ulna
I: Base of the 5th Metacarpal A: Wrist extension, Ulnar deviation |
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Extensor-supinator group
(deep layer) |
Abductor pollicus longus
Extensor pollicis longus Extensor pollicis brevis Extensor indicis Supinator |
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Abductor pollicus longus
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O: Proximal 1/2 of radius, ulna and interosseous membrane
I: Base of the 1st metacarpal A: Abducts and extends 1st digit (pollux) |
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Extensor pollicis longus
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coming soon
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Extensor pollicis brevis
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coming soon
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Extensor indicis
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O: Posterior surface of distal 1/3 of ulna and interosseous membrane
I: Extensor expansion of the 2nd digit A: Extends the 2nd digit, Helps to extend the hand |
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Supinator
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O: Lateral epicondyle, Radial collateral ligament, Annular ligament, Crest of ulna
I: Posterolateral and anterior surfaces of proximal 1/3 of radius A: Supination |
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Hand
(Thenar compartment) |
Abductor pollicis brevis
Flexor pollicis brevis Opponens pollicis |
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Hand
(Hypothenar compartment) |
Abductor digiti minimi
Flexor digiti minimi brevis Opponens digiti minimi |
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Hand
(Adductor compartment) |
Adductor pollicis
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