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Flashcards in Msk Final Deck (289)
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1

Autoimmune disorder attaching schwann cells causing demyelination in the peripheral nervous system

Guillian barre

2

hypaxial/ Extrinsic back muscles are innervated by who

CN11 and brachial plexus branches

3

epaxial/ intrinsic back muscles are innervated by who

dorsal rami of spinal nerves

4

what muscles make up the erector spinae group of intrinsic back muscles? They extend and laterally flex vertebral column.

spinalis, longissimus, iliocostalis

5

what muscles make up the transversospinalis group of intrinsic back muslces

rotatores, multifidus, semispinalis

6

what modalities are carried by dorsal root fibers

sensory

7

what modalities are carried by dorsal ramus of spinal nerve

sensory and motor

8

what modalities are carried by ventral root fibers

motor

9

what modalities are carried by ventral ramus of spinal nerve

sensory and motor

10

insertion, action, and innervation of splenius cervicis (originates at nuchal ligament)

transverse process of C-3
extend head/ neck, lateral flexion and rotation of neck
dorsal rami of spinal nerves

11

insertion, action, and innervation of splenius capitis

lateral part of mastoid process
extend head/ neck, lateral flexion and rotation of neck
dorsal rami of spinal nerves

12

action, blood supply, and innervation of iliocostalis (runs from iliac crest to lumbar, thoracic, and cervical transverse processes)

extend and laterally flex vertebral column
posterior intercostal and lumbar aa.
dorsal rami of spinal nerves

13

action, blood supply, and innervation of longissimus

extend/ lateral flex vertebral column
posterior intercostal aa. for thoracis and cervicis portions
occipital a. for capitis portion
nerve: dorsal rami

14

action, blood supply, and innervation of spinalis m. (thoracis, cervicis, capitis portions)

extend and lateral flex vertebral column
posterior intercostal aa.
dorsal rami

15

blood supply and innervation for semispinalis

cervicis and capitis: deep cervical a.
thoracis: posterior intercostal aa.
all are innervated by dorsal rami

16

muscle running from transverse process of one vertebra to spinous process of the vertebra superiorly

multifidus (attach to tip of spinous process)
rotatores (2 bellies attach at base of spinous process)

17

blood supply, innervation, and action of multifidus

posterior lumbar arteries
dorsal rami
stabilize vertebra during localized movement

18

blood supply, innervation, and action of rotatores

posterior intercostal arteries
dorsal rami
extend head and spine and rotate contralaterally

19

what is the only intrinsic back muscle that receives BOTH ventral and dorsal contribution from spinal nerves

intertransversari m.

20

blood supply to interspinales

vertebra, occipital, posterior intercostal aa.

21

blood supply to intertransversari

deep cervical, vertebral, posterior intercostal aa.

22

blood supply to legator costarum

posterior intercostal a.

23

which ligament surrounds the dens holding it in place

transverse ligament of the atlas

24

ligament holding atlas and axis together posteriorly

deep: cruciate ligament
superficial: tectorial membrane

25

the mm. of the sub occipital region are all innervated by dorsal rami of which spinal nerve?

C1: sub occipital nerve

26

rectus capitis posterior major and minor, obliquus capitis superior and inferior are postural muscles that aid extension and rotation at which joint

atlantoaxial joint (they are sub occipital muslces)

27

what are the borders and contents of sub occipital triangle

boarders: obliquus capités superior and inferior and rectus capitis major
contents: suboccipital n. and vertebral a.

28

which vertebrae have foramina in their transverse process

cervical

29

which vertebrae have bifid spinous process

cervical

30

which vertebrae have facets for ribs

thoracic