test 2 - cervical disc disease Flashcards Preview

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Flashcards in test 2 - cervical disc disease Deck (35)
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1

what is the annulus fibrosus innervated by

sinuvertebral nerve - ventral ramus (somatic root)

vertebral nerve  - sympathetic nervous system (autonomic root)

2

what movements is the annulus of the disc most susceptible to injury

rotation and translation movements 

3

the annulus is ____ water

65%

4

hydrated gelatinous structure located in the center of each intervertebral disc that has consistency of toothpaste

nucleus pulposus

5

traps and holds water, which is what gives the nucleus its strength and resiliency; can trap and hold over 500 times their weight in water

proteoglycan aggrecan

6

this type of tear is often cause of strain/sprain to spine

circumferential tear

7

what type of tears allow nucleus to come out

radial tears

8

which disc in the cervical spine is most common to degenerate/ be damaged

C5

9

____ disc is felt in the inferior angle of the scap

C6-7

10

_____ disc was felt in the center of the medial scapular border

C5-6

11

____ disc was felt in the region of the spine of the scap and superior angle

C4-5

12

____ disc was referred to the C7 spinous process and the posterior border of the trap 

C3-4

13

C4 disc bulge/herniation most likely affects the _____ root

C5

14

what is the most common cause of cervical radiculopathy 

foraminal encroachment (70-75%)

15

incidence of specific nerve root radiculopathies 

C7

C6

C8

C5

C7 - 70%

C6 - 20-25%

C8 - 4-10%

C5 - 2%

16

annular fissuring within the disc without external disc deformation

internal disc derangment

DDD can progress into IDD

17

pain generation of DDD

chemical - all the time 

ishemic 

mechanical - intermittent

18

pain wihtout nerve root involvement typically is vague, diffuse, and distributed axially

discogenic pain

- act. that increase IAP intensify symptoms

19

what area of the disc has the highest amount of phospholipase A2

nucleus pulposus

20

area of sensory disturbance with root pathology

dermatome

21

area where pain is experienced with root pathology 

dynatome

22

T/F: dermatomes do not correspond with dynatomes 

TRUE

23

radic pain

exacerbated by: 

improves with:

exacerbated with neck ext and rotation

improves with flexion and abduction of symptomatic upper limb (bakody's sign)

24

increased upper and lower limb reflexes or other upper motor neuron signs suggest ____ and mandate _____

myelopathy 

aggressive diagnostic evaluation

25

nerve root with the most consisten clinical sign will be pain

C1-C4

26

nerve root with pain along the clavicle and top of scap

C4

27

nerve roots that are the most testable due to muscular innervation

 

C5-T1

28

nerve root with deltoid and biceps m is tested

C5

29

reflex testing: tapping the brachioradialis and biceps tendon 

sensation: superior aspect of shoulder and lateral arm

C4-C5 disc

 

30

what neurologic level checked by

wrist ext

brachioradialis tendon

and sensation of lateral forearm

C6