Muscles Of The Forearm And Wrist

Front 1

Name the muscles of the anterior compartment, superficial layer

Back 1

- Pronator teres

- Flexor carpi radialis

- Palmaris longus

- Flexor carpi ulnaris

- Flexor digitorum superficialis

Front 2

Pronator teres
O & I

Back 2

O:
1) medial epicondyle of humerus
2) coronoid process of ulna

I: middle lateral ulna

Front 3

Pronator teres
Innervation

Back 3

median

Front 4

Pronator teres
Vasculature

Back 4

radial

ulnar

Front 5

Pronator teres
Main Action

Back 5

pronates forearm

weakly flexes elbow

Front 6

Flexor carpi radialis (FCR)
O & I

Back 6

O: medial epicondyle of humerus

I: base of MC 2

Front 7

Flexor carpi radialis (FCR)
Innervation

Back 7

medial

Front 8

Flexor carpi radialis (FCR)
Vasculature

Back 8

radial

Front 9

Flexor carpi radialis (FCR)
Main Action

Back 9

flexes wrist

RD wrist

Front 10

Palmaris longus
O & I

Back 10

O: medial epicondyle of humerus

I:
1) distal 1/2 flexor retinaculum
2) palmar aponeurosis

Front 11

Palmaris longus
Innervation

Back 11

median

Front 12

Palmaris longus
Vasculature

Back 12

ulnar

Front 13

Palmaris longus
Main Action

Back 13

flexes wrist

tightens aponeurosis/retinaculum

Front 14

Flexor carpi ulnaris (FCU)
O & I

Back 14

O:
1) medial epicondyle of humerus
2) olecranon
3) posterior ulna

I:
1) pisiform
2) hook of hamate
3) MC 5

Front 15

Flexor carpi ulnaris (FCU)
Innervation

Back 15

ulnar

Front 16

Flexor carpi ulnaris (FCU)
Vasculature

Back 16

ulnar

Front 17

Flexor carpi ulnaris (FCU)
Main Action

Back 17

flexes wrist

UD wrist

Front 18

Flexor digitorum superficialis (FDS)
O & I

Back 18

O:
1) medial epicondyle of humerus
2) ulnar collateral ligament
3) coronoid process of ulna
4) superior 1/2 anterior radius

I: middle phalanges of digits 2-5

Front 19

Flexor digitorum superficialis (FDS)
Innervation

Back 19

median

Front 20

Flexor digitorum superficialis (FDS)
Vasculature

Back 20

ulnar

radial

Front 21

Flexor digitorum superficialis (FDS)
Main Action

Back 21

flexes middle phalanges

Front 22

Name the muscles of the anterior compartment, deep layer

Back 22

- flexor digitorum profundus

- flexor pollicis longus

- pronator quadratus

Front 23

Flexor digitorum profundus (FDP)
O & I

Back 23

O:
1) proximal 3/4 medial and anterior ulna
2) interosseous membrane

I: bases of distal phalanges of digits 2-5

Front 24

Flexor digitorum profundus (FDP)
Innervation

Back 24

ulnar

median

Front 25

Flexor digitorum profundus (FDP)
Vasculature

Back 25

ulnar

radial

anterior interosseous

Front 26

Flexor digitorum profundus (FDP)
Main Action

Back 26

flexes distal phalanges

Front 27

Flexor pollicis longus (FPL)
O & I

Back 27

O:
1) anterior radius
2) interosseous membrane

I: base of distal phalanx of thumb

Front 28

Flexor pollicis longus (FPL)
Innervation

Back 28

median

Front 29

Flexor pollicis longus (FPL)
Vasculature

Back 29

radial

anterior interosseous

Front 30

Flexor pollicis longus (FPL)
Main Action

Back 30

flexes phalanges of thumb

Front 31

Pronator quadratus
O & I

Back 31

O: distal 1/4 anterior ulna

I: distal 1/4 anterior radius

Front 32

Pronator quadratus
Innervation

Back 32

median

Front 33

Pronator quadratus
Vasculature

Back 33

radial

anterior interosseous

Front 34

Pronator quadratus
Main Action

Back 34

pronates forearm

Front 35

Name the muscles of the posterior compartment (11)

Back 35

- brachioradialis

- extensor carpi radialis longus (ECRL)

- extensor carpi radialis brevis (ECRB)

- extensor digitorum (ED/EDC)

- extensor digiti minimi (EDM)

- extensor carpi ulnaris (ECU)

- supinator

- abductor pollicis longus

- extensor pollicis brevis (EPB)

- extensor pollicis longus (EPL)

- extensor indici (EI)

Front 36

Brachioradialis
O & I

Back 36

O: proximal 2/3 lateral supracondylar ridge of humerus

I: lateral distal radius

Front 37

Brachioradialis
Innervation

Back 37

radial

Front 38

Brachioradialis
Vasculature

Back 38

radial recurrent

Front 39

Brachioradialis
Main Action

Back 39

flexes elbow

Front 40

Extensor carpi radialis longus (ECRL)
O & I

Back 40

O: lateral supracondylar ridge

I: base MC 2

Front 41

Extensor carpi radialis longus (ECRL)
Innervation

Back 41

radial

Front 42

Extensor carpi radialis longus (ECRL)
Vasculature

Back 42

radial recurrent

Front 43

Extensor carpi radialis longus (ECRL)
Main Action

Back 43

extend wrist

RD wrist

Front 44

Extensor carpi radialis brevis (ECRB)
O & I

Back 44

O: lateral epicondyle of humerus

I: base MC 3

Front 45

Extensor carpi radialis brevis (ECRB)
Innervation

Back 45

radial

Front 46

Extensor carpi radialis brevis (ECRB)
Vasculature

Back 46

radial recurrent

Front 47

Extensor carpi radialis brevis (ECRB)
Main Action

Back 47

extend wrist

RD wrist

Front 48

Extensor digitorum (ED/EDC)
O & I

Back 48

O: lateral epicondyle of humerus

I: external expansions of digits 2-5

Front 49

Extensor digitorum (ED/EDC)
Innervation

Back 49

posterior interosseous (from radial)

Front 50

Extensor digitorum (ED/EDC)
Vasculature

Back 50

posterior interosseous

radial

Front 51

Extensor digitorum (ED/EDC)
Main Action

Back 51

extends digits 2-5

Front 52

Extensor digiti minimi (EDM)
O & I

Back 52

O: lateral epicondyle of humerus

I: external expansion of digit 5

Front 53

Extensor digiti minimi (EDM)
Innervation

Back 53

posterior interosseous

Front 54

Extensor digiti minimi (EDM)
Vasculature

Back 54

posterior interosseous

radial

Front 55

Extensor digiti minimi (EDM)
Main Action

Back 55

extends digit 5

Front 56

Extensor carpi ulnaris (ECU)
O & I

Back 56

O:
1) lateral epicondyle of humerus
2) posterior ulna

I: base MC 5

Front 57

Extensor carpi ulnaris (ECU)
Innervation

Back 57

posterior interosseous

Front 58

Extensor carpi ulnaris (ECU)
Vasculature

Back 58

posterior interosseous

radial

Front 59

Extensor carpi ulnaris (ECU)
Main Action

Back 59

extends wrist

UD wrist

Front 60

Supinator
O & I

Back 60

O:
1) lateral epicondyle of humerus
2) radial collateral and annular ligaments
3) crest of ulna

I: lateral, posterior, and anterior proximal 1/3 radius

Front 61

Supinator
Innervation

Back 61

posterior interosseous

Front 62

Supinator
Vasculature

Back 62

radial recurrent

Front 63

Supinator
Main Action

Back 63

supinates forearm

Front 64

Abductor pollicis longus
O & I

Back 64

O:
1) posterior ulna
2) radius
3) interosseous membrane

I: base MC 1

Front 65

Abductor pollicis longus
Innervation

Back 65

posterior interosseous

Front 66

Abductor pollicis longus
Vasculature

Back 66

posterior interosseous

radial

Front 67

Abductor pollicis longus
Main Action

Back 67

abducts thumbs

extends thumbs

Front 68

Extensor pollicis brevis (EPB)
O & I

Back 68

O:
1) posterior interosseous
2) interosseous membrane

I: base of proximal phalanx of thumb

Front 69

Extensor pollicis brevis (EPB)
Innervation

Back 69

posterior interosseous

Front 70

Extensor pollicis brevis (EPB)
Vasculature

Back 70

posterior interosseous

radial

Front 71

Extensor pollicis brevis (EPB)
Main Action

Back 71

extends proximal phalanx of thumb

Front 72

Extensor pollicis longus (EPL)
O & I

Back 72

O:
1) posterior middle 1/3 ulna
2) interosseous membrane

I: base of distal phalanx of thumb

Front 73

Extensor pollicis longus (EPL)
Innervation

Back 73

posterior interosseous

Front 74

Extensor pollicis longus (EPL)
Vasculature

Back 74

posterior interosseous

radial

Front 75

Extensor pollicis longus (EPL)
Main Action

Back 75

extends distal phalanx of thumb

Front 76

Extensor indici (EI)
O & I

Back 76

O:
1) posterior ulna
2) interosseous membrane

I: external expansion of digit 2

Front 77

Extensor indici (EI)
Innervation

Back 77

posterior interosseous

Front 78

Extensor indici (EI)
Vasculature

Back 78

posterior interosseous

radial

Front 79

Extensor indici (EI)
Main Action

Back 79

extends digit 2