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48 Cards in this Set

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What is the origin of the extensor carpi radialis longus & brevis?
Lateral supracondylar ridge of humerus
What is the insertion of the extensor carpi radialis longus & brevis?
Longus: Base of 2nd metacarpal

Brevis: Base of 3rd metacarpal
What is the action of the extensor carpi radialis longus & brevis?
Extend the wrist
Abduct the wrist
Assist to flex the elbow
What is the origin of the extensor carpi ulnaris?
Common extensor tendon from the lateral epicondyle of humerus
What is the insertion of the extensor carpi ulnaris?
Base of 5th metacarpal
What is the action of the extensor carpi ulnaris?
Extend the wrist
Adduct the wrist
What is the origin of the extensor digitorum?
Common extensor tendon from the lateral epicondyle of humerus
What is the insertion of the extensor digitorum?
Middle and distal phalanges of 2nd-5th fingers
What is the action of the extensor digitorum?
Extend the 2nd-5th fingers
Assist to extend the wrist
What is the origin of the flexor carpi radialis?
Common flexor tendon from medial epicondyle
What is the insertion of the flexor carpi radialis?
Bases of 2nd & 3rd metacarpals
What is the action of the flexor carpi radialis?
Flex the wrist
Abduct the wrist
Flex the elbow
What is the origin of the palmaris longus?
Common flexor tendon from medial epicondyle
What is the insertion of the palmaris longus?
Flexor retinaculum and palmar aponeurosis
What is the action of the palmaris longus?
Tense the palmar fascia
Flex the wrist
Flex the elbow
What is the origin of the flexor carpi ulnaris?
Humeral Head: Common flexor tendon from medial epicondyle of humerus

Ulnar Head: Posterior surface of proximal half of ulnar shaft
What is the insertion of the flexor carpi ulnaris?
Pisiform
What is the action of the flexor carpi ulnaris?
Flex the wrist
Adduct the wrist
Assist to flex the elbow
What is the origin of the flexor digitorum superficialis?
Common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna and shaft of radius
What is the insertion of the flexor digitorum superficialis?
By 4 tendons into sides of middle phalanges of 2nd-5th fingers
What is the action of the flexor digitorum superficialis?
Flex the 2nd-5th fingers (metacarpophalangeal & proximal interphalangeal joints)

Flex the wrist
What is the origin of the flexor digitorum profundus?
Anterior and medial suraces of proximal 3/4 of ulna
What is the insertion of the flexor digitorum profundus?
By 4 tendons into bases of distal phalanges, palmar surface of 2nd-5th fingers
What is the action of the flexor digitorum profundus?
Flex the 2nd-5th fingers (metacarpophalangeal & distal interphalangeal joints)

Assist to flex the wrist
What is the origin of the pronator teres?
Medial epicondyle of the humerus, common flexor tendon and coronoid process of the ulna
What is the insertion of the pronator teres?
Middle of lateral surface of the radius
What is the action of the pronator teres?
Pronate the forearm
Assist to flex the elbow
What is the origin of the pronator quadratus?
Medial anterior surface of distal ulna
What is the insertion of the pronator quadratus?
Lateral anterior surface of distal radius
What is the action of the pronator quadratus?
Pronate the forearm
What is the origin of the supinator?
Radial collateral ligament, annular ligament and supinator crest of the ulna
What is the insertion of the supinator?
Lateral surface of the proximal shaft of the radius
What is the action of the supinator?
Supinate the forearm
What is the origin of the opponens pollicis?
Flexor retinaculum and tubercle of the trapezium
What is the insertion of the opponens pollicis?
Entire length of first metacarpal bone, radial side
What is the action of the opponens pollicis?
Opposition of the thumb at the carpometacarpal joint (bringing the pads of the thumb and 5th finger together)
What is the origin of the adductor pollicis?
Capitate, 2nd & 3rd metacarpals
What is the insertion of the adductor pollicis?
Base of the proximal phalange of thumb
What is the action of the adductor pollicis?
Adduct the thumb
Assist in flexion of the thumb
What is the origin of the abductor pollicis brevis?
Flexor retinaculum, trapezium and scaphoid tubercles
What is the insertion of the abductor pollicis brevis?
Base of proximal phalange of thumb
What is the action of the abductor pollcis brevis?
Abduct the thumb
Assist in opposition of the thumb
What is the origin of the flexor pollicis brevis?
Superficial Head: Flexor retinaculum

Deep Head: Trapezium, trapezoid & capitate
What is the insertion of the flexor pollicis brevis?
Base of proximal phalange of thumb
What is the action of the flexor pollicis brevis?
Flex the thumb
Assist in opposition of the thumb
What is the origin of the flexor pollicis longus?
Anterior surface of radius and interosseous membrane
What is the insertion of the flexor pollicis longus?
Distal phalange of thumb
What is the action of the flexor pollicis longus?
Flex the thumb (interphalangeal joint)

Assist to flex the thumb (metacapophalangeal & carpometacapral joints)