Muscles Of The Forearm, Wrist & Hand By Sschlais

Front 1

What is the origin of the extensor carpi radialis longus & brevis?

Back 1

Lateral supracondylar ridge of humerus

Front 2

What is the insertion of the extensor carpi radialis longus & brevis?

Back 2

Longus: Base of 2nd metacarpal

Brevis: Base of 3rd metacarpal

Front 3

What is the action of the extensor carpi radialis longus & brevis?

Back 3

Extend the wrist
Abduct the wrist
Assist to flex the elbow

Front 4

What is the origin of the extensor carpi ulnaris?

Back 4

Common extensor tendon from the lateral epicondyle of humerus

Front 5

What is the insertion of the extensor carpi ulnaris?

Back 5

Base of 5th metacarpal

Front 6

What is the action of the extensor carpi ulnaris?

Back 6

Extend the wrist
Adduct the wrist

Front 7

What is the origin of the extensor digitorum?

Back 7

Common extensor tendon from the lateral epicondyle of humerus

Front 8

What is the insertion of the extensor digitorum?

Back 8

Middle and distal phalanges of 2nd-5th fingers

Front 9

What is the action of the extensor digitorum?

Back 9

Extend the 2nd-5th fingers
Assist to extend the wrist

Front 10

What is the origin of the flexor carpi radialis?

Back 10

Common flexor tendon from medial epicondyle

Front 11

What is the insertion of the flexor carpi radialis?

Back 11

Bases of 2nd & 3rd metacarpals

Front 12

What is the action of the flexor carpi radialis?

Back 12

Flex the wrist
Abduct the wrist
Flex the elbow

Front 13

What is the origin of the palmaris longus?

Back 13

Common flexor tendon from medial epicondyle

Front 14

What is the insertion of the palmaris longus?

Back 14

Flexor retinaculum and palmar aponeurosis

Front 15

What is the action of the palmaris longus?

Back 15

Tense the palmar fascia
Flex the wrist
Flex the elbow

Front 16

What is the origin of the flexor carpi ulnaris?

Back 16

Humeral Head: Common flexor tendon from medial epicondyle of humerus

Ulnar Head: Posterior surface of proximal half of ulnar shaft

Front 17

What is the insertion of the flexor carpi ulnaris?

Back 17

Pisiform

Front 18

What is the action of the flexor carpi ulnaris?

Back 18

Flex the wrist
Adduct the wrist
Assist to flex the elbow

Front 19

What is the origin of the flexor digitorum superficialis?

Back 19

Common flexor tendon from medial epicondyle of humerus, ulnar collateral ligament, coronoid process of ulna and shaft of radius

Front 20

What is the insertion of the flexor digitorum superficialis?

Back 20

By 4 tendons into sides of middle phalanges of 2nd-5th fingers

Front 21

What is the action of the flexor digitorum superficialis?

Back 21

Flex the 2nd-5th fingers (metacarpophalangeal & proximal interphalangeal joints)

Flex the wrist

Front 22

What is the origin of the flexor digitorum profundus?

Back 22

Anterior and medial suraces of proximal 3/4 of ulna

Front 23

What is the insertion of the flexor digitorum profundus?

Back 23

By 4 tendons into bases of distal phalanges, palmar surface of 2nd-5th fingers

Front 24

What is the action of the flexor digitorum profundus?

Back 24

Flex the 2nd-5th fingers (metacarpophalangeal & distal interphalangeal joints)

Assist to flex the wrist

Front 25

What is the origin of the pronator teres?

Back 25

Medial epicondyle of the humerus, common flexor tendon and coronoid process of the ulna

Front 26

What is the insertion of the pronator teres?

Back 26

Middle of lateral surface of the radius

Front 27

What is the action of the pronator teres?

Back 27

Pronate the forearm
Assist to flex the elbow

Front 28

What is the origin of the pronator quadratus?

Back 28

Medial anterior surface of distal ulna

Front 29

What is the insertion of the pronator quadratus?

Back 29

Lateral anterior surface of distal radius

Front 30

What is the action of the pronator quadratus?

Back 30

Pronate the forearm

Front 31

What is the origin of the supinator?

Back 31

Radial collateral ligament, annular ligament and supinator crest of the ulna

Front 32

What is the insertion of the supinator?

Back 32

Lateral surface of the proximal shaft of the radius

Front 33

What is the action of the supinator?

Back 33

Supinate the forearm

Front 34

What is the origin of the opponens pollicis?

Back 34

Flexor retinaculum and tubercle of the trapezium

Front 35

What is the insertion of the opponens pollicis?

Back 35

Entire length of first metacarpal bone, radial side

Front 36

What is the action of the opponens pollicis?

Back 36

Opposition of the thumb at the carpometacarpal joint (bringing the pads of the thumb and 5th finger together)

Front 37

What is the origin of the adductor pollicis?

Back 37

Capitate, 2nd & 3rd metacarpals

Front 38

What is the insertion of the adductor pollicis?

Back 38

Base of the proximal phalange of thumb

Front 39

What is the action of the adductor pollicis?

Back 39

Adduct the thumb
Assist in flexion of the thumb

Front 40

What is the origin of the abductor pollicis brevis?

Back 40

Flexor retinaculum, trapezium and scaphoid tubercles

Front 41

What is the insertion of the abductor pollicis brevis?

Back 41

Base of proximal phalange of thumb

Front 42

What is the action of the abductor pollcis brevis?

Back 42

Abduct the thumb
Assist in opposition of the thumb

Front 43

What is the origin of the flexor pollicis brevis?

Back 43

Superficial Head: Flexor retinaculum

Deep Head: Trapezium, trapezoid & capitate

Front 44

What is the insertion of the flexor pollicis brevis?

Back 44

Base of proximal phalange of thumb

Front 45

What is the action of the flexor pollicis brevis?

Back 45

Flex the thumb
Assist in opposition of the thumb

Front 46

What is the origin of the flexor pollicis longus?

Back 46

Anterior surface of radius and interosseous membrane

Front 47

What is the insertion of the flexor pollicis longus?

Back 47

Distal phalange of thumb

Front 48

What is the action of the flexor pollicis longus?

Back 48

Flex the thumb (interphalangeal joint)

Assist to flex the thumb (metacapophalangeal & carpometacapral joints)