sept 23

Question 1

trapezius, latissumus dorsi, levator scapula, and rhomboids are in what layer of the back muscles?

Answer 1

superficial/extrinsic

Question 2

what is the shared function of the superficial muscle layer of the back

Answer 2

connect the upper limb to the trunk

Question 3

serratus posterior superior and serratus posterior inferior are in what layer of the back muscles?

Answer 3

intermediate/intrinsic

Question 4

what is the shared function of the intermediate muscle layer of the back?

Answer 4

accessory muscles of respiration

Question 5

how many layers in the deep muscles of the back?

Answer 5

3 (superficial, intermediate, deep)

Question 6

layer of deep back muscles, contains splenius capitis and splenius cervicis

Answer 6

superficial

Question 7

layer of deep back muscles, contains spinalis, longissimus, and iliocostalis

Answer 7

intermediate

Question 8

layer of deep back muscles, 3 columns of muscles collectively called the erector spinae/paraspinals

Answer 8

intermediate

Question 9

layer of deep back muscles, muscles here have both superomedial and vertical fibre directions

Answer 9

deep

Question 10

semispinalis, multifidus, and rotatores are in what layer of the deep back muscles?

Answer 10

deep

Question 11

interspinales and intertransversarii are in what layer of the deep back muscles?

Answer 11

deep

Question 12

the superomedial fibre muscles of the deep deep layer of the back are found where?

Answer 12

laminar groove (between the spinous and transverse processes)

Question 13

which muscles of the deep deep layer of the back attach from the transverse process to the spinous processes of more superior vertebrae

Answer 13

superomedial fibre muscles

Question 14

which muscles of the deep deep layer of the back are collectively called the transverseospinalis muscles

Answer 14

superomedial fibre muscles

Question 15

the superomedial muscles of the deep deep layer of the back are in what order, from superficial to deep?

Answer 15

semispinalis, multifidus, rotatores

Question 16

muscle of the intermediate layer of the back. deep to rhomboids

Answer 16

serratus posterior superior

Question 17

muscles of the intermediate layer of the back. superficial to the erector spinae

Answer 17

serratus posterior superior and inferior

Question 18

muscle of the intermediate layer of the back. medial attachment: SPs of C7-T3, lateral attachment: superior borders of ribs 2-5

Answer 18

serratus posterior superior

Question 19

muscle of the intermediate layer of the back. elevates ribs 2-5 during deep inhalation

Answer 19

serratus posterior superior

Question 20

muscle of the intermediate layer of the back. deep to the latissimus/thoracolumbar fascia

Answer 20

serratus posterior inferior

Question 21

muscle of the intermediate layer of the back. medial attachment: SPs of T11-L2, lateral attachment: Lower 4 ribs

Answer 21

serratus posterior inferior

Question 22

muscle of the intermediate layer of the back. draws ribs down and back during forced exhalation

Answer 22

serratus psoterior inferior

Question 23

muscle of the superficial deep layer of the back. attaches the SPs of C4-T2 to the mastoird process and lateral superior nuchal line

Answer 23

splenius capitis

Question 24

muscle of the superficial deep layer of the back. does ipsilateral rotation (unilateral) and extension of the neck (bilateral)

Answer 24

splenius capitis/cervicis

Question 25

muscle of the superficial deep layer of the back. attaches SPs of T3-T5 to TVPs of C1-C4

Answer 25

splenius cervicis

Question 26

which layer of deep back muscles arise inferiorly from the thoracolumbar fascia and spread out superlateraly

Answer 26

intermedate

Question 27

muscle of the intermediate deep layer of the back. very thin, shortest column

Answer 27

spinalis

Question 28

muscle of the intermediate deep layer of the back. sits in laminar groove and attaches to SPs

Answer 28

spinalis

Question 29

muscle of the intermediate deep layer of the back. longest column

Answer 29

longissimus

Question 30

muscle of the intermediate deep layer of the back. most visible and palpable

Answer 30

longissimus

Question 31

muscle of the intermediate deep layer of the back. attaches to TVPs

Answer 31

longissimus

Question 32

muscle of the intermediate deep layer of the back. attaches to the angles of the ribs

Answer 32

iliocostalis

Question 33

actions of the muscles of the intermediate deep layer of the back.

Answer 33

lateral flexion of the vertebral column, extension of the vertebral column

Question 34

muscles of the intermediate deep layer of the back from medial to lateral

Answer 34

spinalis, longissimus, iliocostalis

Question 35

muscle of the deep deep layer of the back. superomedial, covers upper half of the spinal column

Answer 35

semispinalis

Question 36

muscle of the deep deep layer of the back. superomedial, fibres attach 3-6 vertebrae apart from TVPs to SPs

Answer 36

semispinalis

Question 37

muscle of the deep deep layer of the back. superomedial, attaches superiorly to the occipital bone between the superior and inferior nuchal lines

Answer 37

semispinalis

Question 38

muscle of the deep deep layer of the back. does extension and contralateral rotation of the neck

Answer 38

semispinalis

Question 39

muscle of the deep deep layer of the back. superomedial, largest mass in the back of the neck

Answer 39

semispinalis

Question 40

muscle of the deep deep layer of the back. superomedial, attaches from S4-C2, fibres skip 1-3 vertebrae

Answer 40

multifidus

Question 41

muscle of the deep deep layer of the back. superomedial. does extension, stabilization, lateral flexion, and contralateral rotation of the spine

Answer 41

multifidus

Question 42

muscle of the deep deep layer of the back. superomedial. the only muscle to cross the posterior sacrum

Answer 42

multifidus

Question 43

muscle of the deep deep layer of the back. superomedial, deepest in the laminar groove

Answer 43

rotatores

Question 44

muscle of the deep deep layer of the back. superomedial, longus fibres skip 1 vertebra, brevis fibres do not

Answer 44

rotatores

Question 45

muscle of the deep deep layer of the back. superomedial. does stabilization and contralateral rotation

Answer 45

rotatores

Question 46

muscle of the deep deep layer of the back. vertical, paired muscles on either side of cervical and lumbar SPs

Answer 46

interspinales

Question 47

muscle of the deep deep layer of the back. vertical, does extension

Answer 47

interspinales

Question 48

muscle of the deep deep layer of the back. vertical, attach TVPs of adjacent vertebrae of cervical and lumbar spine

Answer 48

intertransverarii

Question 49

muscle of the deep deep layer of the back. vertical, does lateral flexion

Answer 49

intertransversarii