Deep Back

Question 1

Movements of the axial skeleton

Answer 1

Lateral flexion, flexion, extension, rotation

Question 2

What two joints in the spine permit movement in the spine?

Answer 2

Amphiarthrosis between each vertebrae from the discs
Diarthrosis joints from the articular facets

Question 3

Superficial group of the intrinsic muscles

Answer 3

Splenius capitis and splenius cervicis

Question 4

Origin of splenius capitis and splenius cervicis

Answer 4

Spinous processes of C7-T6

Question 5

Insertion of splenius capitis

Answer 5

Mastoid process

Question 6

Insertion of splenius cervicis

Answer 6

Transverse processes C1-C3

Question 7

Bilateral action of splenius capitis and splenius cervices

Answer 7

Extend head and neck

Question 8

Unilateral action of splenius capitis and splenius cervicis

Answer 8

Laterally flex the neck, rotate head to the side (ipsilateral rotation)

Question 9

Intermediate group of the intrinsic muscles

Answer 9

Erector spinae group
Spinalis, longissimus, iliocostalis

Question 10

Origin for erector spinae group

Answer 10

Iliac crest, sacrum, lumbar spinous processes, supraspinous ligament

Question 11

Insertion of spinalis

Answer 11

Spinous processes, occipital bone

Question 12

Insertion of iliocostalis

Answer 12

Rib angles, cervical processes

Question 12

Insertion of longissimus

Answer 12

Transverse processes, ribs, mastoid processes

Question 13

Divisions of spinalis muscle

Answer 13

Capitis, cervicis, thoracis

Question 14

Divisions of longissimus muscle

Answer 14

Capitis, Cervices, thoracis

Question 15

Divisions of iliocostalis

Answer 15

Cervices, thoracis, lumborum

Question 16

Bilateral action of erector spinae muscle group

Answer 16

Extend the back, head, and neck

Question 17

Unilateral action of erector spinae group

Answer 17

Lateral flexion of vertebral column to the same side

Question 18

Origin of semispianlis muscle group

Answer 18

Tranverse processes of thoracic and lower cervical vertebrae

Question 19

Insertion of semispinalis capitis

Answer 19

Occipital bone

Question 20

Insertion of semispinalis cervices

Answer 20

Cervical spinous processes. Ends at C2

Question 21

Action of semispinalis

Answer 21

Rotates head/neck contralaterally

Question 22

Bilateral action of transversospinalis

Answer 22

Extend and stabilize the vertebral column

Question 23

Origin of rototores

Answer 23

Transverse process

Question 24

Insertion of rototores

Answer 24

Spinous processes and lamina

Question 25

Action of rototores

Answer 25

Assist in stabilization and rotation of

Question 26

Origin of multifundus

Answer 26

Sacrum, ilium (PSIS), mammillary processes of lumbar vertebrae

Question 27

Insertion of multifundus

Answer 27

Spinous processes of thoracic and lumbar vertebrae

Question 28

Action of Interspinales

Answer 28

Assist in extension

Question 29

Action of intertransversarii

Answer 29

Assist in lateral flexion and stabilization of

Question 30

Action of levatores costarum

Answer 30

Elevate ribs and assist in respiration. Assist in lateral flexion.

Question 31

Development of deep back muscles from myotomes

Answer 31

Myotomes divide into dorsal and ventral mass.
Dorsal mass becomes intrinsic back muscles
Ventral mass becomes hypaxial muscles

Question 32

Origin of rectus capitis posterior major

Answer 32

Spinous process of C2

Question 33

Insertion of rectus capitis posterior major

Answer 33

Inferior nuchal line of occipital bone

Question 34

Action of rectus capitis posterior major

Answer 34

Extension and ipsilateral rotation

Question 35

Origin of rectus capitis posterior minor

Answer 35

Posterior tubercle of C1

Question 36

Insertion of rectus capitis posterior minor

Answer 36

Inferior nuchal line of occipital bone

Question 37

Action of rectus capitis posterior minor

Answer 37

Extension and ipsilateral rotation

Question 38

Origin of obliquus capitis inferior

Answer 38

Spinous process of C2

Question 39

Insertion of obliquus capitis inferior

Answer 39

Transverse process of C1

Question 40

Action of obliquus capitis inferior

Answer 40

Ipsilateral rotation of head

Question 41

Origin of obliquus capitis superior

Answer 41

Transverse process of C1

Question 42

Insertion of obliquus capitis superior

Answer 42

Occipital bone

Question 43

Action of obliquus capitis superior

Answer 43

Extension and lateral flexion of head

Question 44

Greater occipital nerve innervates ___

Answer 44

Skin over posterior neck and head
Primarily cutaneous

Question 45

Suboccipital nerve innervates ______

Answer 45

Muscles of suboccipital region
Primarily somatic motor

Question 46

Lesser occipital nerve innervates ______

Answer 46

Scalp posterior to the ear and skin postero-lateral neck
Primarily cutaneous

Question 47

Contents of the suboccipital triangle

Answer 47

Vertebral artery and suboccipital nerve

Question 48

Superiomedial border of the suboccipital triangle

Answer 48

Rectus capitis posterior major

Question 49

Superolateral border of the suboccipital triangle

Answer 49

Obliquus capitis superior

Question 50

Inferolateral border of the suboccipital triangle

Answer 50

Obliquus capitis inferior

Question 51

Floor of the suboccipital triangle

Answer 51

Atlanto-occipital membrane and posterior arch of C1

Question 52

Roof of suboccipital triangle

Answer 52

Semispinalis capitis