Musculoskeletal Part Six

Question 1

platysma function

Answer 1

depresses mandible

draws mouth inferiorly

Question 2

overall function of the intervertebral disc

Answer 2

dissipate compressive loads

Question 3

absence of a carotid pulse indicates

Answer 3

cardiac arrest

Question 4

dorsal roots transmit _____ fibers to spinal cord

and transmit ____ fibers from spinal cord to spinal nerve

Answer 4

sensory fibers to spinal cord

motor fibers from spinal cord

Question 5

the main lateral flexor of the spine

Answer 5

quadratus lumborum

Question 6

intermediate intrinsic back muscles lateral to medial

Answer 6

iliocostalis

longisimus

spinalis

Question 7

where is the carotid pulse felt

Answer 7

side of the neck

Question 8

main muscles of inspiration

Answer 8

diaphragm
internal intercostal
external intercostal
levator costarum

Question 9

the vertebral arteries branch off of the

Answer 9

subclavian artery

Question 10

Hypoventilation would do what do blood pH

Answer 10

Lower it (acidosis)

Question 11

what muscles make up the iliopsoas

Answer 11

iliacus

psoas

Question 12

muscles for forced expiration

Answer 12

internal oblique
external oblique
transverse abdominis
rectus abdominis

Question 13

a wedge fracture results from…

Answer 13

forced flexion of the thoracic or lumbar spine

Question 14

innervation of spine flexors

Answer 14

intercostals

Question 15

what artery is palpated for the carotid pulse

Answer 15

external carotid artery

Question 16

Prolonged use of antacids could lead to…

Answer 16

Alkalosis (blood pH above 7.45)

Question 17

what is the inside of the vertebral disc called

Answer 17

nucleus polposus

Question 18

primary function of iliopsoas

Answer 18

hip flexion, ER

Question 19

what is counternutation

Answer 19

extension of sacrum

anterior rotation of ilium

Question 20

Can Gullain-Barre cause respiratory muscle weakness

Answer 20

Yes

Question 21

what injury to the disc can result from rotation injury

Answer 21

posterolateral protrusion

can compress a spinal nerve root

Question 22

spinal cord terminates approximately at what level

Answer 22

L1-L2 disc

Question 23

excessive compression of the spine can cause…

Answer 23

burst fracture of the vertebral body

Question 24

what muscles comprise the deep layer of intrinsic muscles of the back

Answer 24

semispinalis

multifidus

rotatores

Question 25

what is nutation

Answer 25

flexion of sacrum posterior rotation of ilium

Question 26

what level is the thyroid cartilage located at

Answer 26

C4-C5

Question 27

what makes the ilium

Answer 27

ischium ilium pubis

Question 28

the annulus fibrosis is composed of

Answer 28

collagen and fibrocartilage | 65% water

Question 29

congenital torticollis AKA

Answer 29

wryneck

Question 30

function of the quadratus lumborum

Answer 30

unilaterally elevates ilium bilaterally assists in forced exhalation, extends back

Question 31

what is nucleus pulposis comprised of

Answer 31

water and proteoglycans | minimal collagen

Question 32

occlusion of the vertebral arteries can result in

Answer 32

dizziness tinnitus fainting nystagmus diplopia

Question 33

what innervates structures on the posterior trunk

Answer 33

dorsal rami

Question 34

function of splenius capitis and cervicis alone AND together

Answer 34

alone: lateral flexion, rotation to the same side together: extend head and neck

Question 35

action of semispinalis, multifidus, rotatores

Answer 35

together: extend and stabilize the spine alone: laterally flex the spine to the same side, rotate opposite

Question 36

During hypoventilation, what happens to carbon dioxide removal in the body

Answer 36

Less CO2 removed = acidic blood

Question 37

what is the articulation between atlanto-axial

Answer 37

C1/C2 C2: dens C1: anterior arch

Question 38

levator costarum, ext. intercostals, internal intercostal: NR Innervation

Answer 38

NR: T1-T12 I: Intercostal

Question 39

function of vertebral bodies

Answer 39

support body weight

Question 40

nerve roots for spine flexion

Answer 40

T7 and below

Question 41

what is a teardrop fracture

Answer 41

triangular fragment split from the vertebral body anteriorly

Question 42

piriformis action in all position

Answer 42

NWB/hip ext: ER hip flexed 90: ABD WB: IR

Question 43

function of the annulus fibrosis

Answer 43

sustain compressive, torsional, shearing, and distraction loads

Question 44

diaphragm: nerve roots innervation

Answer 44

NR: C3-C5 I: Phrenic nerve

Question 45

innervation for muscles of expiration

Answer 45

intercostal

Question 46

how does a teardrop fracture happen

Answer 46

compression of the anterior aspect of the vertebral body

Question 47

SCM function

Answer 47

ipsilateral side bend contralateral rotation