Muscles of Back

Question 1

attach to cervical and thoracic spinous processes and ribs that elevate ribs

Answer 1

serratus posterior superior

Question 2

attaches lumbar spinous process, ribs, and cervical transverse processes

Answer 2

iliocostalis

Question 3

attaches at vertebral border of scapula and upper thoracic vertebral spinous process

Answer 3

rhomboid

Question 4

evelates scapula

Answer 4

levator scapulae

Question 5

attaches from transverse process to spinous processes in thoracic region; 1 or 2 superior

Answer 5

rotatores

Question 6

extends head and neck and moves scapula

Answer 6

trapezius

Question 7

muscles that move the vertebral column and are responsible for maintaining erect posture of the spine

Answer 7

intrinsic back muscle

Question 8

attaches at nuchal ridge at occipital protuberance of cranium, nuchal ligament in neck, vertebral segments, spine of scapula, and clavicle

Answer 8

trapezius

Question 9

most superficial layer of extrinsic layer include which muscles

Answer 9

trapezius and latissimus dorsi

Question 10

attach at thoracic spinous processes to cervical transverse processes

Answer 10

splenius cervicis

Question 11

attaches at lower thoracic vertebral segments down to lumbar down to thoracolumbar fascia and attaches at humerus (intertubular sulcus)

Answer 11

latissimus dorsi

Question 12

group containing spinalis, longissimus, and ilicostalis

Answer 12

erector spinae

Question 13

more deep intrinsic muscles

Answer 13

transversospinalis muscles

Question 14

attach from spinous process to transverse process in thoracic, lumbar, and cervical region; 2+ superior

Answer 14

multifudus

Question 15

intermediate layer of extrinsic layer include which muscles

Answer 15

levator scapulae and rhomboid

Question 16

erector spinae muscle group _______ the trunk when active unilaterally

Answer 16

laterally flex/bend

Question 17

deepest layer of extrinsic layer include which muscles

Answer 17

serratus posterior inferior and superior

Question 18

more intermediate intrinsic muscles

Answer 18

erector spinae

Question 19

attaches at spinal processes of lumbar, thoracic, and cervical regions and at nuchal ligament

Answer 19

spinalis

Question 20

muscles that move the shoulder and arm

Answer 20

extrinsic back muscles

Question 21

more superficial intrinsic muscles

Answer 21

splenius

Question 22

motor and sensory innervation for latissimus dorsi comes from _______

Answer 22

thoracodorsal n (Brachial Plexus)

Question 23

attach to thoracic and lumbar spinous processes and ribs that depress ribs

Answer 23

serratus posterior inferior

Question 24

retracts scapula

Answer 24

rhomboid

Question 25

motor and sensory innervation for rhomboid minor and major comes from _______

Answer 25

Brachial Plexus (Dorsal Scapular n.)

Question 26

motor and sensory innervation for serratus posterior comes from _______

Answer 26

Intercostal nerve branches

Question 27

motor innervation for trapezius comes from ______

Answer 27

Spinal accessory n (CNXI)

Question 28

moves arm/ humerus

Answer 28

lattisimus dorsi

Question 29

attach between spinal processes from lumbar to cervical

Answer 29

interspinalis

Question 30

sensory innervation for trapezius comes from ______

Answer 30

Cervical plexus (C3 & C4)

Question 31

less tissue, easier to hear breathing sounds; made of deltoid, trapezius, and latissimus dorsi endings

Answer 31

triangle of auscultation

Question 32

erector spinae muscle group _______ the trunk when active bilaterally

Answer 32

extend

Question 33

attach at lower cervical and thoracic spinous processes to mastoid process of cranium

Answer 33

splenius capitus

Question 34

attach between transverse processes from lumbar to cervical

Answer 34

intertransversarii

Question 35

motor and sensory innervation for levator scapulae comes from _______

Answer 35

Cervical Plexus (C3 &C4) and Brachial Plexus (Dorsal Scapular n)

Question 36

attach superior angle of scapula, transverse processes of first 4 vertebrae

Answer 36

levator scapulae

Question 37

attach from transverse process to ribs; 1 inferior only in thoracic region

Answer 37

levator costarum

Question 38

attach from thoracic transverse processes to the mastoid process of cranium

Answer 38

semispinalis

Question 39

group containing semispinalis, rotatores, and multifudus

Answer 39

transversospinalis group

Question 40

attaches at sacrum/ilium, mastoid process of cranium, cervical transverse processes

Answer 40

longissimus

Question 41

transversospinalis muscle group ______ the trunk when they are active bilaterally

Answer 41

extend

Question 42

nerves for intrinsic back muscles come from ______

Answer 42

dorsal ramus

Question 43

slight weakening in lateral abdominal wall, prone to herniation; formed by latissimus dorsi (posterior), external oblique, and ilium

Answer 43

lumbar triangle

Question 44

when transversospinalis muscle group are active unilaterally, they ________ the trunk to the opposite side of the muscle activity

Answer 44

rotate

Question 45

splenius muscle segments

Answer 45

capitus and cervicis

Question 46

iliocostalis muscle segments

Answer 46

lumborum, thoracis, and cervicis

Question 47

longissimus muscle segments

Answer 47

thoracis, cervicis, and capitus

Question 48

spinalis muscle segments

Answer 48

thoracis and cervicis

Question 49

rotatores muscle segments

Answer 49

longus and brevus

Question 50

semispinalis muscle segments

Answer 50

cervicis and capitus

Question 51

Answer 51

Question 52

Answer 52