Deep Back And Anterior/lateral Aspect Of The Neck: Origins And Insertions

Front 1

Serratus posterior superior

Back 1

O: inferior portion of ligamentum nuchae, spinous processes C7-T2/3

I: superior border of ribs 2-4/5

Front 2

serratus posterior inferior

Back 2

O: spinous processes T11/12-L1/2

I: inferior border of 2-3 ribs

Front 3

splenius capitis

Back 3

O: inferior 1/3 ligaamentum nuchae, spinous processes C7-T3/4

I: lateral portion of the superior nuchal line to the mastoid process

Front 4

splenius cervicis

Back 4

O: spinous processes of T4-5/6

I: posterior tubercles of transverse processes C2-4

Front 5

iliocostalis lumborum

Back 5

O: posterior surface of sacrum, sacrotuberous ligament, posterior portion of iliac crest, spinous processes T11-L5

I: angle of lower 6 ribs

Front 6

iliocostalis thoracis

Back 6

O: angle of lower 6 ribs

I: angle of upper 6 ribs

Front 7

iliocostalis cervicis

Back 7

O: angle of upper 6 ribs

I: transverse processes C4-6

Front 8

longissimus thoracis

Back 8

O: posterior surface of sacrum, sacrotuberous ligament, posterior portion of iliac crest, spinous processes T11-L5

I: lower 9/10 ribs and adjacent transverse processes

Front 9

longissimus cervicis

Back 9

O: rib and adjacent transverse processes of T1-4/5/6

I: posterior tubercles of C2-6

Front 10

longissimus capitis

Back 10

O: tendons of insertion of the longissimus cervicis and articular processes C4-7

I: mastoid process

Front 11

spinalis

Back 11

O: spinous processes T10-L2

I: spinous processes T1-T8

Front 12

semispinalis thoracis

Back 12

O: transverse process of lower 6 thoracic vertebrae

I: spinous processes C6/7-T4

Front 13

semispinalis cervicis

Back 13

O: transverse processes T1-6

I: spinous processes C2-5

Front 14

semispinalis capitus

Back 14

O: transverse processes T1-6, articular processes C5-7

I: base of the skull, btwn superior and inferior nuchal lines

Front 15

multifidus

Back 15

O: sacrum

I: C2

*fibers attach to a transverse process, ascend 2-4 vertebral segments and attach to the corresponding spinous process

Front 16

interspinalis

Back 16

located btwn consecutive spinous processes

Front 17

intertransversarii

Back 17

located btwn adjacent transverse processes

anterior & posterior in cervical region (connect costal elements of adjacent vertebrae)
medial & lateral in lumbar region (connect tranverse processes in adjacent vertebrae)

Front 18

long rotators

Back 18

O: deepest portion of the transverso-spinal muscle system, deep to multifidus, extends from sacrum

I: C2

fibers course from transverse process of one vert, skip one vert segment and attach to the base of the spinous process

Front 19

short rotators

Back 19

O: deepest portion of the transverso-spinal muscle system, deep to multifidus, extends from sacrum

I: C2

fibers course from transverse process of one vert to the base of the spinous process of the next, superior, adjacent vert

Front 20

rectus capitus posterior major

Back 20

O: spinous process of C2

I: occipital bone, just lateral to midline

Front 21

rectus capitus posterior minor

Back 21

O: posterior tubercle of C1

I: occipital bone, just medial to rectur capitus posterior major

Front 22

obliquus capitus inferior

Back 22

O: spinous process of C2

I: transverse process of C1

Front 23

obliquus capitus superior

Back 23

O: transverse proces of C1

I: occipital bone, deep to insertions of splenius & semispinalis capitis (inferior nuchal line)

Front 24

longus colli

Back 24

O: anterior surface of vert bodies

I: anterior tubercles of transverse processes

C1-T3

Front 25

longus capitis

Back 25

O: anterior tubercles of transverse processes C3-6

I: inferior surface of basilar portion of occipital bone

Front 26

psoas major

Back 26

O: superior and inferior edges of vert bodies and intervening discs T12-L4

I: lesser trochanter of femur

Front 27

sternocleidomastoid

Back 27

O: tendinous head from the sternum and medial 1/3 of the clavicle

I: mastoid process

Front 28

platysma

Back 28

O: region around lower lip, over the mandible

I: over clavicle, as far as 2nd rib

Front 29

sternohyoid

Back 29

O: posterior aspect of manubrium and sternal end of clavicle

I: into body of hyoid bone

Front 30

omohyoid

Back 30

O: via a muscular belly from the body of the hyoid bone

I: via a muscular belly to the medial lip of the scapular notch

Front 31

sternothyroid

Back 31

O: from posterior surface of manubrium

I: into oblique line of thyroid cartilage

Front 32

thyrohyoid

Back 32

O: oblique line of thyroid cartilage

I: into the hyoid bone

Front 33

digastric: anterior belly

Back 33

to/from medial surface of the mandible, just lateral to the midline

Front 34

digastric: posterior belly

Back 34

to/from the medial surface of the mastoid process

Front 35

mylohyoid

Back 35

O: medial surface of the body of the mandible (along mylohyoid line), meets the fibers from the opposite side at the midline raphe

I: hyoid bone

Front 36

stylohyoid

Back 36

O: styloid process of the skull

I: via a split tendon into the hyoid bone