Deep Back Muscles

Question 1

The deep back muscles are all encased in what?

Answer 1

Thorocolumbar fascia

Question 2

The three groups of deep back muscles are?

Answer 2

Splenius, Erector spinae, and transverso-spinalis

Question 3

The splenius muscles all originate on ______ and run _____

Answer 3

Spinous processes

laterally up

Question 4

Erector spinae run which direction

Answer 4

parallel to the midline

Question 5

Transverso-spinalis muscles run which direction

Answer 5

From transverse process to spinous process

Question 6

All of the deep muscles in the back are innervated by the and produce _____

Answer 6

dorsal primary rami

lateral extension of the muscle.

Question 7

Splenius muscles are two _____shaped muscles

They are deep to the ______

Answer 7

Bandage

Trapezius

Question 8

______are the most superficial of the deep back muscles

Answer 8

The splenius muscles

Question 9

The splenius muscles are located where?

Answer 9

The neck and upper thorax

Question 10

The splenius captis is a ____ shaped muscle

Answer 10

broad flat

Question 11

Splenius Capitis (origin)

Answer 11

Spinous processes of C7-T3

Question 12

Splenius Captis (insertion)

Answer 12

Mastoid process and lateral aspect of superior nuchal line.

Question 13

Splenius Capitis (action)

Answer 13

Produces rotation in the direction of the contracted muscle.

Question 14

Splenius cervicis is a _____muscle that wraps around the _____

Answer 14

narrow

splenius Capitis

Question 15

Splenius cervicis (origin)

Answer 15

Spinous processes of T5-T7

Question 16

Splenius Cervicis (insertion)

Answer 16

Transverse processes of C1-C4

Question 17

Splenius Capitis and Splenius cervicis (Nerve and action)

Answer 17

Nerve:Dorsal primary rami
Action: Bilaterally- extension of head and neck, unilaterally- rotation of the same side of the contracting muscle.

Question 18

Erector spinae features ___ columns of muscles and are ____ group of muscles seen in bundles on each side of the spine

Answer 18

3

long

Question 19

The erector spinae muscles as a whole (origin)

Answer 19

Spinous processes of T11-S3, illiac crest, and surface of the sacrum

Question 20

The erector spinae muscles as a whole (action)

Answer 20

Bilaterally: extension of the vertebral column
Unilaterally: Lateral flexion on the same side of contraction.

Question 21

The erector spinae muscles as a whole (Nerve)

Answer 21

Dorsal Primary Rami

Question 22

The three columns on erector spinae muscles are (pneumonic is I Love Spaghetti)
They run which direction?

Answer 22

iliocostalis
Longissimus
Spinalis
Straight up and down.

Question 23

The Iliocostalis is the most ___ of the three erector spinae muscles.

What are its three parts?

Answer 23

Lateral

Lumborum, Thoracus, Cervicis

Question 24

Iliocostalis lumborum (origin)

Answer 24

Illiac crest

Question 25

Iliocostalis Lumborum (insertion)

Answer 25

Lower 6 ribs

Question 26

Iliocostalis Thoracus (origin)

Answer 26

Lower 6 ribs

Question 27

iliocostalis thoracis (insertion)

Answer 27

upper 6 ribs

Question 28

Iliocostalis Cervicis (origin)

Answer 28

Upper 6 ribs

Question 29

Iliocostalis Cervicis (insertion)

Answer 29

Transverse processes of cervical vertebrae.

Question 30

The longissimus muscle is the ____ portion and is the _____ of the erector spinae group

Answer 30

middle | longest

Question 31

Longissimus thoracis (origin)

Answer 31

illiac crest

Question 32

Longissimus thoracis (insertion)

Answer 32

Lower 9 ribs

Question 33

Longissimus Cervicis (origin)

Answer 33

Transverse processes of T1-T4

Question 34

Longissimus Cervicis (insertion)

Answer 34

Transverse processes of C3-C7

Question 35

Longissimus Capitis (origin)

Answer 35

Articular processes of C3-C7

Question 36

Longissimus capitis (insertion)

Answer 36

Mastoid process (splenius covers)

Question 37

Spinalis muscle is the most _____ of the erector spinae muscles

Answer 37

medial

Question 38

Spinalis Thoracis (origin)

Answer 38

Spinous processes of T11-L2

Question 39

Spinalis Thoracis (insertion)

Answer 39

Spinous processes of T1-T4

Question 40

Spinalis Cervicis origin and insertion are not Spinalis captis muscle is _____ to the ____

Answer 40

Visible | fuses to the semispinalis Capitis

Question 41

The Transverso-spinalis group of muscles runs the _____ of the vertebral column and has ____ parts

Answer 41

entire length 3

Question 42

Semispinalis (thoracis) muscle is deep to the

Answer 42

erector spinae

Question 43

Semispinalis thoracis (origin)

Answer 43

Transverse processes of T6-T12

Question 44

Semispinalis Thoracis (insertion)

Answer 44

Spinous processes of T1-T6

Question 45

Semispinalis Cervicis (origin)

Answer 45

Transverse processes of T1-T6

Question 46

Semispinalis Cervicis (insertion)

Answer 46

Spinous processes of C3-C6

Question 47

Semispinalis Capitis (origin)

Answer 47

Transverse processes of T1-T6 and articular processes of C5-C7

Question 48

Semispinalis Capitis (Insertion)

Answer 48

Between the superior and inferior nuchal lines on occipital bone.

Question 49

Multifidus (part of the Transverso-spinalis muscle group) is a _____ _____ sheet of muscles

Answer 49

Long, continuous

Question 50

The multifidus muscles run from the ____ to the ____

Answer 50

sacrum | lower cervical vertebrae

Question 51

The multifidus muscles run from the _______ processes to the _______

Answer 51

transverse processes to the spinous processes of 3 vertebrae higher)

Question 52

Rotators (part of semispinalis group) are ___muscles seen in ___, ____, and ______ regions

Answer 52

tiny | Cervical, thoracic, and lumbar

Question 53

Rotators (short or brevis) run from

Answer 53

Transverse processes to spinous processes directly above

Question 54

Rotators (long or Longus) run from

Answer 54

Transverse processes to spinous processes 2 vertebrae above.

Question 55

Semispinalis muscles (action)

Answer 55

Unilaterally: Multifidus and rotators rotate in opposite direction of contraction Bilaterally: Extension of back

Question 56

Semispinalis muscles (Nerve)

Answer 56

Dorsal primary rami