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Flashcards in cervical 2 Deck (24)
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1

during flex/ext theta ___ is coupled with ___ translation, at a normal range of 3.5mm

X
Z

2

lat bend causes spinous processes to move toward the convex (contralat) curve, so (+)theta __ is coupled with (-)theta ___ (& VV)

Z
Y

3

the steepest arches of curvature at at:

C6 & C7

4

-four lig that limit pos theta x (flex)
-ALL limits neg theta x

PLL
ligamenta flava
IS
ligamentum nuchae

5

shape of the sup and inf surfaces of the VB

sellar (saddle)

6

in the CS, the shape of the VB ensures that along the x axis, ___ is reduced and ____ is promoted

translation
rotation

7

-structure that serves as guides to couple lat flex with rot
-limits pure lat flex to only a few deg

uncinate processes

8

inferior facet orientation for CS TS & LS respectively (sup facets will be opposite for all

C: AIL
T: AIM
L: AIL

9

cervical average facet orientation is __ degrees

45

10

prior to 20 yo, the artic cart of the Z joint has ___ mm thickness, and thins with age

1-1.3

11

what happens to the avasc/annerv IVD during disc degen and osteoarthritis

increase vascularity & innervation

12

for proprioception, superficial layers show receptors resembling ____ (vibe/pressure) while deeper layers resemble ____ (periph compression/alignment)

pacinian copruscles (type II, MAJORITY)
golgi tendon organs (type III)

13

-____ mechanoreceptors are responsive to extremes rather than mid range of jt motion
-only small # in C facet capsules, each resp for a large receptive field

facet

14

-____ coordination req complex proprioceptive neck muscle inputs (high spindle content)
-high propriocep content make spindles ideal jt position/movement sensors

head-eye

15

-change in the stim-response profile of dorsal horn neurons so they resp on mechanoreceptive afferents as if they were nociceptors
-hurt =/= harm

sensitization

16

adjustments to decrease nociceptor input to the SC seem to be an effective way to tdecrease the _____ ____ state

hyperexcitable central

17

when does cervical curvature begin to develop?
-lordosis aids in absorbing spinal loads

prior to birth

18

when does cervical curvature begin to develop?
-lordosis aids in absorbing spinal loads

prior to birth

19

location of the "upper" c curve is ___ and the lower is located ___

occ-atlas (kyphotic)
C2-C7 (classical)

20

angle of the cervical lordosis should be ___ deg with lines bt C1 & C7

30-45

21

___ ___ believed kyphosis was abnormal:
-pain, autonomic dysfx
-straightened/reversed curve=> ____ headaches
-improved ___ d/o by inducing lordosis

deed harrison
tension
neurological

22

primary load on CS, which increases either flexion or extension

compression

23

max isometric muscle action in CS is ___N, but indv units can withstand ___N of compression w/o dmg
-muscle coactivation forces

1200
2000

24

-a COMPRESSIVE VERTICAL load applied collapses CS in ext/flex at

40
250