Back Muscles (Separated)

Front 1

Trapezius

(Origin)

Back 1

Spinous Process of C7 - T12

Superior Nuchal Line

External Occipital Protuberance

Front 2

Trapezius

(Insertion)

Back 2

Clavicle

Acromion

Spine of Scapula

Front 3

Trapezius

(Innervation)

Back 3

CN XI - Spinal Accessory Nerve

(Motor Function)

Anterior Primary Rami of C3 & C4

(proprioception)

Front 4

Latissimus Dorsi

(Origin)

Back 4

Spinous Process of T7 - T12

Iliac Crest

Ribs 10-12

Sacrum

Front 5

Latissimus Dorsi

(Insertion)

Back 5

Floor of intertubercular sulcus of humerus

Front 6

Latissimus Dorsi

(Innervation)

Back 6

Thoracodorsal Nerve

Front 7

Levator Scapulae

(Origin)

Back 7

Transverse Process C1-C4

Front 8

Levator Scapulae

(Insertion)

Back 8

Superior Angle of Scapula

Front 9

Levator Scapulae

(Innervation)

Back 9

Dorsal Scapular Nerve

Front 10

Rhomboid Major

(Origin)

Back 10

Spinous Process T2 - T5

Front 11

Rhomboid Major

(Insertion)

Back 11

Medial Border of Scapula

Front 12

Rhomboid Major

(Innervation)

Back 12

Dorsal Scapular Nerve

Front 13

Rhomboid Minor

(Origin)

Back 13

Nuchal Ligament

Spinous Process C7 & T1

Front 14

Rhomboid Minor

(Insertion)

Back 14

Medial Border of Scapula

Front 15

Rhomboid Minor

(Innervation)

Back 15

Dorsal Scapular Nerve

Front 16

Serratus Posterior Superior

(Origin)

Back 16

Spinous Process C7 - T3

Front 17

Serratus Posterior Superior

(Insertion)

Back 17

Superior Borders of Ribs 2 - 5

Front 18

Serratus Posterior Superior

(Innervation)

Back 18

Intercostal Nerves

Assists Inspiration

(Lets Air In)

Front 19

Serratus Posterior Inferior

(Origin)

Back 19

Spinous Process of T 11 - L2

Front 20

Serratus Posterior Inferior

(Insertion)

Back 20

Inferior Border of Ribs 9 - 12

Front 21

Serratus Posterior Inferior

(Innervation)

Back 21

Intercostal Nerves

Assists Expiration

(Pushes Air Out of Bottom)

Front 22

Splenius Capitis

(Origin)

Back 22

Nuchal Ligament

Front 23

Splenius Capitis

(Insertion)

Back 23

Superior Nuchal Line

Mastoid Process

Front 24

Splenius Capitis

(Innervation)

Back 24

Posterior Primary Rami of Cervical Nerves

Front 25

Splenius Cervicis (Origin)

Back 25

Spinal Process of T3 - T6

Front 26

Insertion

Back 26

Transverse Process of C1 - C3

Front 27

Innervation

Back 27

Posterior Primary Rami of Cervical Nerves

Front 28

Spinalis

(Attachment)

Back 28

Spanning spinous processes of vertebrae on each side

*Part of Erector Spinae (ILS)

Front 29

Spinalis

(Innervation)

Back 29

Posterior Rami of Cervical Nerves

Front 30

Longissimus

(Attachments)

Back 30

sacrum to skull (longest)

attaches to ribs between tubercle and angle

transverse processes and cervicle vertebrae

Front 31

Innervation

Back 31

Posterior rami of lower cervical nerves

Front 32

Iliocostalis

(Origin)

Back 32

Median Sacral Crest

SP of lumbar and lower thoracic vertebrae

Medial part of iliac crest

Front 33

Iliocostalis

(Innervation)

Back 33

Posterior Rami ofCervical Nerves

Front 34

Erector Spinae

(Function)

Back 34

(Both sides)

Extension of vertebral column

(Single Side)

Ipsilateral Rotation

Front 35

Semispinalis

(Attachment)

Back 35

Transverse Processes of C4 - T12

Between Nuchal Lines and Occipital Bone

Front 36

Semispinalis

(Inervation)

Back 36

Posterior Primary Rami of Spinal Nerves

Front 37

Semispinalis

(Function)

Back 37

Holding Head Up

Front 38

Multifidis

(Origin)

Back 38

Posterior Sacrum

Iliac Spine

Transverse Process T1 - 3

(spans all the way to head - C2)

Articular Processes of C4 -7

Front 39

Multifidis

(Innervation)

Back 39

Posterior Rami of Spinal Nerves

Front 40

Rotatores

(Attachment)

Back 40

Arise from transverse processes of vertebrae and attach to spinous processes

Span 1 (brevis) to 2 (longus) vertebrae

*Best developed in thoracic region

Front 41

Rotatores

(Innervation)

Back 41

Posterior Primary Rami of Spinal Nerves