Muscles Of Superior Limb

Front 1

supraspinatus muscle (origin)

Back 1

supraspinous fossa of the scapula (rotator cuff)

Front 2

supraspinatus muscle (insertion)

Back 2

greater tubercle of the humerus

Front 3

supraspinatus muscle (action)

Back 3

abduct limb at shoulder joint

Front 4

infraspinatus muscle (origin)

Back 4

infraspinous fossa of the scapula (rotator cuff)

Front 5

infraspinatus muscle (insertion)

Back 5

greater tubercle of the humerus

Front 6

infraspinatus muscle (action)

Back 6

extend should joint, rotate brachium laterally-externally

Front 7

teres minor muscle (origin)

Back 7

lateral border of the scapula (rotator cuff)

Front 8

teres minor muscle (insertion)

Back 8

greater tubercle of the humerus

Front 9

teres minor muscle (action)

Back 9

adduct limb at shoulder joint, rotate limb brachium laterally-externally

Front 10

teres major muscle (origin)

Back 10

inferior angle of scapula

Front 11

teres major muscle (insertion)

Back 11

medial border of the intertubercular groove (crest of the lesser tubercle) of the humerus

Front 12

teres major muscle (action)

Back 12

extend shoulder joint, adduct limb at shoulder joint, rotate brachium medially-internally

Front 13

subscapularis muscle (origin)

Back 13

subscapular fossa

Front 14

subscapularis muscle (insertion)

Back 14

lesser tubercle of humerus (rotator cuff)

Front 15

subscapularis muscle (action)

Back 15

rotate brachium medially-internally

Front 16

deltoideus muscle (origin)

Back 16

acromial extremity of the clavicle, acromion of scapula, spine of scapula

Front 17

deltoideus muscle (insertion)

Back 17

deltoid tuberosity of the humerus

Front 18

deltoideus muscle (action)

Back 18

flex and extend shoulder joint, rotate brachium medially and laterally, abduct limb at shoulder joint

Front 19

coracobrachialis muscle (origin)

Back 19

coracoid process of scapula

Front 20

coracobrachialis muscle (insertion)

Back 20

medial border of humerus

Front 21

coracobrachialis muscle (action)

Back 21

flex shoulder joint, adduct limb at shoulder joint

Front 22

biceps brachii muscle (origin)

Back 22

long head: neck of scapula short head: coracoid process of scapula

Front 23

biceps brachii muscle (insertion)

Back 23

bicipital aponeurosis to tuberosity of radius

Front 24

biceps brachii muscle (action)

Back 24

flex shoulder joint, flex elbow joint, supinate antebrachium

Front 25

brachialis muscle (origin)

Back 25

anterior border of humerus

Front 26

brachialis muscle (insertion)

Back 26

coronoid process of ulna

Front 27

brachialis muscle (action)

Back 27

flex elbow joint

Front 28

brachioradialis muscle (origin)

Back 28

lateral supracondylar crest of humerus

Front 29

brachioradialis muscle (insertion)

Back 29

base of styloid process of radius

Front 30

brachioradialis muscle (action)

Back 30

flex elbow joint, supinate antebrachium from pronated position, pronate antebrachium from supinated position

Front 31

triceps brachii muscle (origin)

Back 31

long head: lateral border of scapula lateral head: lateral and posterior aspects of humerus medial head: medial and posterior aspects of humerus

Front 32

triceps brachii muscle (insertion)

Back 32

olecranon of ulna

Front 33

triceps brachii muscle (action)

Back 33

extend elbow joint, long head: extend shoulder joint, adduct limb at shoulder joint

Front 34

anconeus muscle (origin)

Back 34

lateral epicondyle of humerus

Front 35

anconeus muscle (insertion)

Back 35

olecranon (and adjacent body) of ulna

Front 36

anconeus muscle (action)

Back 36

extend cubital joint

Front 37

carpal flexor retinaculum

Back 37

transverse across carpal canal

Front 38

flexor carpi radialis muscle (origin)

Back 38

medial epicondyle of humerus

Front 39

flexor carpi radialis muscle (insertion)

Back 39

anterior aspect of bases of second and third metacarpal bones

Front 40

flexor carpi radialis muscle (action)

Back 40

flex carpal joint, abduct manus at carpal joint

Front 41

palmaris longus muscle (origin)

Back 41

medial epicondyle of humerus

Front 42

palmaris longus muscle (insertion)

Back 42

flexor retinaculum, carpal ligament, and palmar aponeurosis

Front 43

palmaris longus muscle (action)

Back 43

flex carpal joint

Front 44

superficial digital flexor muscle (origin)

Back 44

medial epicondyle of humerus, coronoid process of ulna, proximal aspect of radius

Front 45

superficial digital flexor muscle (insertion)

Back 45

middle phalanges of digits 2,3,4 and 5

Front 46

superficial digital flexor muscle (action)

Back 46

flex carpal joint, metacarpophalangeal joints, proximal interphalangeal joints

Front 47

deep digital flexor muscle (origin)

Back 47

proximal aspect of ulna

Front 48

deep digital flexor muscle (insertion)

Back 48

separate tendons to base of distal phalanges of digits 2,3,4 and 5

Front 49

deep digital flexor muscle (action)

Back 49

flex carpal joint and digital joints

Front 50

flexor pollicis longus muscle (origin)

Back 50

anterior aspect of radial body

Front 51

flexor pollicis longus muscle (insertion)

Back 51

distal phalanx of pollex

Front 52

flexor pollicis longus muscle (action)

Back 52

flex digital joints of pollex

Front 53

flexor carpi ulnaris muscle (origin)

Back 53

humeral head: medial epicondyle of humerus ulnar head: olecranon and body of ulna

Front 54

flexor carpi ulnaris muscle (insertion)

Back 54

pisiform bone, hamulus of hamate bone, base of fifth metacarpal bone

Front 55

flexor carpi ulnaris muscle (action)

Back 55

flex carpal joint, adduct manus at carpal joint

Front 56

pronator teres muscle (origin)

Back 56

medial epicondyle of humerus, medial side of coronoid process of ulna

Front 57

pronator teres muscle (insertion)

Back 57

lateral side of middle aspect of body of radius

Front 58

pronator teres muscle (action)

Back 58

pronate the manus

Front 59

pronator quadratus muscle (origin)

Back 59

distal, anterior aspect of body of ulna

Front 60

pronator quadratus muscle (insertion)

Back 60

distal, anterior aspect of body of radius

Front 61

pronator quadratus muscle (action)

Back 61

pronate the manus

Front 62

extensor carpi radialis longus muscle (origin)

Back 62

lateral supracondylar crest of humerus

Front 63

extensor carpi radialis longus muscle (insertion)

Back 63

dorsal aspect of base of second metacarpal bone

Front 64

extensor carpi radialis longus muscle (action)

Back 64

extend carpal joint, abduct manus at carpal joint

Front 65

extensor carpi radialis brevis muscle (origin)

Back 65

lateral epicondyle of humerus (1)

Front 66

extensor carpi radialis brevis muscle (insertion)

Back 66

dorsal aspect of base of third metacarpal bone

Front 67

extensor carpi radialis brevis muscle (action)

Back 67

extend carpal joint, abduct manus at carpal joint

Front 68

digital extensor muscle (origin)

Back 68

lateral epicondyle of humerus (2)

Front 69

digital extensor muscle (insertion)

Back 69

middle and distal phalanges of digits 2,3,4 and 5

Front 70

digital extensor muscle (action)

Back 70

extend carpal joint, extend joints of digits 2,3,4 and 5

Front 71

extensor digiti minimi muscle (origin)

Back 71

lateral epicondyle of humerus (2)

Front 72

extensor digiti minimi muscle (insertion)

Back 72

fuses with tendon of digital extensor distributed to fifth digit and also attaches to proximal phalanx

Front 73

extensor digiti minimi muscle (action)

Back 73

extend carpal joint, extend digital joints of fifth digit

Front 74

extensor carpi ulnaris muscle (origin)

Back 74

lateral epicondyle of humerus, proximal posterior aspect of body of ulna

Front 75

extensor carpi ulnaris muscle (insertion)

Back 75

base of fifth metacarpal bone

Front 76

extensor carpi unlaris muscle (action)

Back 76

extend carpal joint, adduct manus at carpal joint

Front 77

abductor pollicis longus muscle (origin)

Back 77

posterior astpects of radial and ulnar bodies

Front 78

abductor pollicis longus muscle (insertion)

Back 78

lateral side of base of first metacarpal bone

Front 79

abductor pollicis longus muscle (action)

Back 79

extend digital joints of thumb, abduct thumb at carpometacarpal joint

Front 80

extensor pollicis brevis muscle (origin)

Back 80

posterior aspect of body of radius and antebrachial interosseous membrane

Front 81

extensor pollicis brevis muscle (insertion)

Back 81

dorsal surface of proximal phalanx of thumb

Front 82

extensor pollicis brevis muscle (action)

Back 82

extend metacarpophalangeal joint of thumb, abduct thumb at metacarpophalangeal joint

Front 83

extensor pollicis longus muscle (origin)

Back 83

posterior aspect of body of radius and antebrachial interosseous membrane

Front 84

extensor pollicis longus muscle (insertion)

Back 84

dorsal aspect of distal phalanx of thumb

Front 85

extensor pollicis longus muscle (action)

Back 85

extend digital joints of thumb, abduct thumb at carpometacarpal joint

Front 86

extensor indicis muscle (origin)

Back 86

posterior aspect of body of ulna

Front 87

extensor indicis muscle (insertion)

Back 87

dorsal aspect of proximal phalanx of index finger

Front 88

extensor indicis muscle (action)

Back 88

extend the second metacarpophalangeal joint