Gross Anatomy Axilla

Front 1

Origin of trapezius?

Back 1

Superioir nuchal line, exterior occipial protuberance, ligementum nuchae, spinous processes of CV VII to TV XII

Front 2

Insertion of trapezious?

Back 2

Lateral 1/3 of clavicle, acromion, spine of scapula

Front 3

Innervation of trapezious?

Back 3

CN XI

Front 4

Action of trapezious?

Back 4

Rotates, elevates, retracts and depresses scapula

Front 5

Origin of latissimus dorsi?

Back 5

Spinous process of TV VI to LV V and sacrum, iliac crest and ribs X to XII

Front 6

Insertion of latissimus dorsi?

Back 6

Intertuercular groove/sulcus

Front 7

Innervation of latissimus dorsi?

Back 7

Thoracodorsal nerve

Front 8

Action of latissimus dorsi?

Back 8

Extends, adducts and medially rotates humerus

Front 9

Origin of levator scapulea?

Back 9

Transverse processes of CV I-IV

Front 10

Insertion of levator scapulea?

Back 10

Superior angle of scupla

Front 11

Innervation of levator scapulea?

Back 11

Dorsal scapular nerve

Front 12

Action of levator scapulea?

Back 12

Elevates and rotates scapula

Front 13

Origin of rhomboid major and minor?

Back 13

Spinous processes of CV VII to TV V

Front 14

Insertion of rhomboid major and minor?

Back 14

Medial border of scapula

Front 15

Innervation of rhomboid major and minor?

Back 15

Dorsal scapular nerve

Front 16

Action of of rhomboid major and minor?

Back 16

Retracts, elevates and rotates scapula

Front 17

Origin of deltoid?

Back 17

Spine of scapula, acromion, lateral 1/3 of clavicle

Front 18

Insertion of deltoid?

Back 18

Deltoid tuberosity

Front 19

Innervation of deltoid?

Back 19

Axillary nerve

Front 20

Action of deltoid?

Back 20

Abduct, flex and extend arm, medial and lateral roation

Front 21

Origin of supraspinatus?

Back 21

Supraspinous fossa

Front 22

Insertion of supraspinatus?

Back 22

Superior facet of greater tubercle

Front 23

Innervation of supraspinatus?

Back 23

Suprascapular nerve

Front 24

Action of supraspinatus?

Back 24

Arm abduction

Front 25

Origin of infraspinatus?

Back 25

Infraspinous fossa

Front 26

Insertion of infraspinatus?

Back 26

Middle facet of greater tubercle

Front 27

Innervationof infraspinatus?

Back 27

Suprascapular nerve

Front 28

Actionof infraspinatus?

Back 28

Lateral rotation of arm

Front 29

Origin of teres major?

Back 29

Lateral scupular border superior to inferior angle

Front 30

Insertion of teres major?

Back 30

Medial lip of intertubercular sulcus (also called crest of lesser tubercle)

Front 31

Innervation of teres major?

Back 31

Lower subscapular nerve

Front 32

Action of teres major?

Back 32

Medial rotation and adduction of arm, extends a flexed arm

Front 33

Origin of teres minor?

Back 33

Lateral scapular border superior to teres major

Front 34

Insertion of teres minor?

Back 34

Inferior facet of greater tubercle

Front 35

Innervation of teres minor?

Back 35

Axillary nerve

Front 36

Actionof teres minor?

Back 36

Lateral rotation of arm

Front 37

Origin of long head triceps?

Back 37

Infraglenoid tubercle of scapula

Front 38

Insertionof long head triceps?

Back 38

Olecranon process via common tendon

Front 39

Innervationof long head triceps?

Back 39

Radial nerve

Front 40

Action of long head triceps?

Back 40

Extends forearm

Front 41

Origin of subscapularis?

Back 41

Subscapular fossa

Front 42

Insertion of subscapularis?

Back 42

Lesser tubercle of humerus

Front 43

Innervation of subscapularis?

Back 43

Upper and lower subscapular nerve

Front 44

Action of subscapularis?

Back 44

Medial roation of arm

Front 45

Origin of pectoralis major?

Back 45

Medial 1/2 of clavicle, anterior surface of sternum

Front 46

Insertionof pectoralis major?

Back 46

Lateral lip of intertuberular sulcus (also called crest of greater tubercle)

Front 47

Innervationof pectoralis major?

Back 47

medial and lateral pectoral nerve (nn.)

Front 48

Actionof pectoralis major?

Back 48

Flexion, adduction and medial rotation of arm

Front 49

Origin of pectoralis minor?

Back 49

Ribs 3-5

Front 50

Insertion of pectoralis minor?

Back 50

Coracoid process

Front 51

Innervationof pectoralis minor?

Back 51

Medial pectoral nerve

Front 52

Actionof pectoralis minor?

Back 52

Pulls tip of shoulder down and protracts scapula

Front 53

Origin of subclavius?

Back 53

First rib

Front 54

Insertionof subclavius?

Back 54

Inferior surface of clavicle

Front 55

Innervationof subclavius?

Back 55

Nerve to subclavius

Front 56

Actionof subclavius?

Back 56

Pulls tip of shoulder down, pulls clavicle medially to stabilize sternoclavicular joint

Front 57

Origin of serratus anterior?

Back 57

Lateral surface of upper 8-9 ribs

Front 58

Insertion of serratus anterior?

Back 58

Costal surface of medial scapular border

Front 59

Innervationof serratus anterior?

Back 59

Long thoracic nerve

Front 60

Actionof serratus anterior?

Back 60

Protraction, rotation and depression of scapula