Clinical Anatomy

Front 1

Splenius Capitis origin

Back 1

Spinous processes of inferior cervical/superior thoracic vertebrae

Front 2

Splenius Capitis insertion

Back 2

Mastoid process; occipital bone; superior cervical vertebrae

Front 3

Splenius Capitis action

Back 3

Extend neck; rotate and laterally flex neck

Front 4

Splenius Capitis innervation

Back 4

Cervical spinal nerves

Front 5

Erector Spinae origin

Back 5

Iliac crest; sacral crest; spinous ; lumbosacral aponeurosis; processes of all vertebrae

Front 6

Erector Spinae insertion

Back 6

Mastoid process; vertebrae at all levels; ribs

Front 7

Erector Spinae action

Back 7

Extend neck; laterally flex vertebral column

Front 8

Erector Spinae innervation

Back 8

DORSAL rami of spinal nerves

Front 9

Rotatores origin

Back 9

Transverse processes of each vertebrae

Front 10

Rotatores insertion

Back 10

Spinous processes of adjacent superior vertebrae

Front 11

Rotatores action

Back 11

Rotate spinal column

Front 12

Rotatores innervation

Back 12

DORSAL rami of spinal nerves

Front 13

Levator scapulae origin

Back 13

Transverse processes of C1-4

Front 14

Levator scapulae insertion

Back 14

Superior angle of scapula

Front 15

Levator scapulae action

Back 15

Elevates scapula

Front 16

Levator scapulae innervation

Back 16

Dorsal scapular nerve

Front 17

Rhomboid major/minor origin

Back 17

Spinous processes C7-T5

Front 18

Rhomboid major/minor insertion

Back 18

Medial border of scapula

Front 19

Rhomboid major/minor action

Back 19

Adducts scapula; rotates glenoid fossa downward

Front 20

Rhomboid major/minor innervation

Back 20

Dorsal scapular nerve

Front 21

Trapezius origin

Back 21

Occipital bone, spinous processes of cervical and thoracic vertebrae

Front 22

Trapezius insertion

Back 22

Clavicle and scapula (spine and acromion)

Front 23

Trapezius action

Back 23

Extend neck; rotate or retract scapula

Front 24

Trapezius innervation

Back 24

CN XI (spinal accessory nerve)

Front 25

Latissimus dorsi origin

Back 25

Spinous processes of vertebrae T8-12, L1-5; thoracolumbar fascia

Front 26

Latissimus dorsi insertion

Back 26

Intertubercular groove of humerus

Front 27

Latissimus dorsi action

Back 27

Extension, adduction, medial rotation of humerus

Front 28

Latissimus dorsi innervation

Back 28

Thoracodorsal nerve

Front 29

Supraspinatus origin

Back 29

Supraspinous fossa of scapula

Front 30

Supraspinatus insertion

Back 30

Greater tubercle of humerus

Front 31

Supraspinatus action

Back 31

ABduction of humerus

Front 32

Supraspinatus innervation

Back 32

Suprascapular nerve

Front 33

Infraspinatus origin

Back 33

Infraspinous fossa of scapula

Front 34

Infraspinatus insertion

Back 34

Greater tubercle of humerus

Front 35

Infraspinatus action

Back 35

Lateral rotation of humerus

Front 36

Infraspinatus innervation

Back 36

Suprascapular nerve

Front 37

Subscapularis origin

Back 37

Subscapular fossa of scapula

Front 38

Subscapularis insertion

Back 38

Lesser tubercle of humerus

Front 39

Subscapularis action

Back 39

Medial rotation of humerus

Front 40

Subscapularis innervation

Back 40

Subscapular nerves

Front 41

Teres minor origin

Back 41

Lateral border of scapula

Front 42

Teres minor insertion

Back 42

Greater tubercle of humerus (laterally)

Front 43

Teres minor action

Back 43

Lateral rotation of humerus

Front 44

Teres minor innervation

Back 44

Axillary nerve

Front 45

Teres major origin

Back 45

Inferior angle of scapula

Front 46

Teres major insertion

Back 46

Intertubercular groove of humerus (medially)

Front 47

Teres major action

Back 47

Extension, aDduction, medial rotation of humerus (assists Latissimus)

Front 48

Teres major innervation

Back 48

Lower subscapular nerve

Front 49

Deltoid origin

Back 49

Clavicle and scapular spine, acromion

Front 50

Deltoid insertion

Back 50

Deltoid tuberosity of humerus

Front 51

Deltoid action

Back 51

Abduction; flexion, medial rotation of humerus

Front 52

Deltoid innervation

Back 52

Axillary nerve

Front 53

Semispinalis Capitis origin

Back 53

Vertebrae C4-T6

Front 54

Semispinalis Capitis insertion

Back 54

Superior nuchal line

Front 55

Semispinalis Capitis action

Back 55

Bilaterally extends neck, maintains neck position for posture

Front 56

Semispinalis Capitis innervation

Back 56

DORSAL rami of spinal nerves

Front 57

Serratus posterior superior origin

Back 57

Spinous processes C7-T3

Front 58

Serratus posterior superior insertion

Back 58

Ribs 2-5

Front 59

Serratus posterior superior action

Back 59

Elevates ribs during inspiration

Front 60

Serratus posterior superior innervation

Back 60

Intercostal nerves

Front 61

Serratus posterior inferior origin

Back 61

Vertebrae T11-L2

Front 62

Serratus posterior inferior insertion

Back 62

Ribs 9-12

Front 63

Serratus posterior inferior action

Back 63

Assists in compression of thorax during forced expiration

Front 64

Serratus posterior inferior innervation

Back 64

Intercostal nerves

Front 65

Serratus Anterior origin

Back 65

Ribs 1-8

Front 66

Serratus Anterior insertion

Back 66

Medial border of scapula

Front 67

Serratus Anterior action

Back 67

Protracts scapula

Front 68

Serratus Anterior innervation

Back 68

Long thoracic nerve