Anatomy Upper Extremity

Front 1

latissimus dorsi origin

Back 1

spinous processes lower 6 thoracic vertebrae and lumbar vertebrae

sacrum

Front 2

latissimus dorsi insertion

Back 2

FLOOR of intertubercular groove of humerus

Front 3

latissimus dorsi action

Back 3

hyperextension

Front 4

trapezius origin

Back 4

superior nuchal line below occipital protuberance, ligamentum nuchae, supraspinous ligaments of 7th cervical and all thoracic vertebrae

Front 5

trapezius insertion

Back 5

inner lateral 1/3 of clavicle, acromion, spine of scapula

Front 6

trapezius action

Back 6

elevation, depression of shoulders

Front 7

rhomboid minor origin

Back 7

spines of 7th cervical and 1st thoracic, ligamentum nuchae

Front 8

rhomboid minor insertion

Back 8

medial border of scapula, at root of spine (post surface)

Front 9

rhomboid minor action

Back 9

Retraction, elevation

Front 10

rhomboid major origin

Back 10

spines of T2-T5 vertebrae, supraspinous ligament

Front 11

rhomboid major insertion

Back 11

medial border of the scapula, below the spine (post surface)

Front 12

rhomboid major action

Back 12

retraction, stabilizes scapula

Front 13

serratus anterior origin

Back 13

superior cords of first 8, 9th ribs

fascia of first intercostal space

Front 14

serratus anterior insertion

Back 14

medial border of scapula (ant surface)

Front 15

serratus anterior action

Back 15

Protracts scapula,

anchor

Front 16

deltoid origin

Back 16

outer aspect lateral 1/3 of clavicle, acromion, spine of scapula

Front 17

delotid insertion

Back 17

deltoid tuberosity

Front 18

deltoid action

Back 18

Abduction to shoulder height

Internal rotation of shoulder

Front 19

levator scapula origin

Back 19

post tubercles of transverse processes of first 4 cervical vertebrae

Front 20

levator scapulae insertion

Back 20

medial border of scapula, above the spine (post surface)

Front 21

levator scapulae action

Back 21

elevates scapula

Front 22

subscapularis origin

Back 22

subscapular fossa

Front 23

subscapularis insertion

Back 23

lesser tubercle of the humerus

Front 24

subscapularis action

Back 24

Primary medial rotation, protection

Front 25

infraspinatus origin

Back 25

infraspinous fossa

Front 26

infraspinatus insertion

Back 26

middle facet of greater tubercle of humerus

Front 27

infraspinatus action

Back 27

Primary external rotator

Front 28

supraspinatus origin

Back 28

supraspinous fossa

Front 29

supraspinatus insertion

Back 29

superior facet of greater tuberosity of humerus

Front 30

supraspinatus action

Back 30

ONLY hyperabductor

holds humerus in place

Front 31

extensor carpi radialis longus/brevis origin

Back 31

lateral condyle of humerus (longus)

lateral supracondylar ridge (brevis)

Front 32

extensor carpi radialis longus/brevis insertion

Back 32

base of 2nd (longus) and 3rd (brevis) metacarpal (dorsal)

Front 33

extensor carpi radialis longus/brevis action

Back 33

extension of wrist joint on radial side

radial deviation

Front 34

extensor digitorum origin

Back 34

common tendon of lateral condyle of humerus

Front 35

extensor digitorum insertion

Back 35

lateral surfaces of phalanges 2-5 (dorsal side)

Front 36

extensor digitorum action

Back 36

extends wrist and digit 2-5

Front 37

extensor carpi ulnaris origin

Back 37

common tendon of the lateral condyle of the humerus

Front 38

extensor carpi ulnaris insertion

Back 38

base of 5th metacarpal (dorsal)

Front 39

extensor carpi ulnaris action

Back 39

extenstion at wrist

adduction

Front 40

brachioradialis origin

Back 40

supracondylar ridge (posterior)

Front 41

brachioradialis insertion

Back 41

lateral shaft of radius and styloid process

Front 42

brachioradialis action

Back 42

flexion at elbow joint

Front 43

brachialis origin

Back 43

midhumeral shaft

Front 44

brachialis insertion

Back 44

ulnar tuberosity and coronoid process

Front 45

brachialis action

Back 45

primary forearm flexor

Front 46

biceps brachii origin

Back 46

SUPRAglenoid tubercle (lateral head)

coracoid process (medial head)

Front 47

biceps brachii insertion

Back 47

radial tuberosity of radius

Front 48

biceps brachii action

Back 48

supinator of forearm when elbow flexed

Front 49

coracobrachialis origin

Back 49

coracoid process

Front 50

coracobrachialis action

Back 50

weak adductor

Front 51

triceps brachii origin

Back 51

INFRAglenoid tubercle

post surface of humerus sup/inf to radial groove (lateral and medial heads)

Front 52

triceps brachii insertion

Back 52

olecranon process of the ulna

Front 53

tricepts brachii action

Back 53

primary extensor of forearm

abduction

Front 54

pectoralis minor origin

Back 54

costal cartilage ribs 3,4,5

Front 55

pectoralis minor insertion

Back 55

coracoid process

Front 56

pectoralis minor action

Back 56

raises ribs

Front 57

pectoralis major origin

Back 57

medial 1/3 of clavicle

sternum

upper 6 costal cartilages

Front 58

pectoralis major insertion

Back 58

lateral lip of the intertubercular groove

Front 59

pectoralis major action

Back 59

horizontal abduction

protection