Chapter 4-- Thoracic Flashcards Preview

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Flashcards in Chapter 4-- Thoracic Deck (59)
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1

What are the general functions of the Ribs

stabilizers of the spine
decrease general mobility of the thoracics
protect the thoracic viscera
function in respiration

2

Does the thoracic spine have more or less pain syndromes or traumatic injuries

no, exceptions to this:
scoliosis
postural myofacial pain syndrome
kyphosis (scheurmanns disease)
compression fractures

3

What shape are the the throracic vertebrae bodies

wedge shaped-- leads to kyphotic curve

4

What site on the thoracic spine is the common site of anomaly

The SP

5

What are the location of the SPs to TPs from T1-4 and T8-12

up 1 interspinous and lateral

6

What is the location of the SPs to the TPs from T5-7

Up 2 interspinous and lateral

7

What is the disc:vertebral body height ratio in the thoracic spine

1:5

8

What does this low ratio lead to

Decreased flexibility in the thoracic spine

9

What angles are formed by the articular facets in the horizontal plane and the vertical plane

Horizontal: 60
Vertical: 30

10

What are the shapes of the articular facets

Flat

11

What direction do the superior facets face

Posterolateral and superior

12

What direction do the inferior facets face

anteromedial and inferior

13

Which ribs articulate in some kind of costochondral joint

R1-10

14

Which ribs articulate directly with the sternum

R1-7

15

What is the range of kyphotic curve of the thoracic spine

25-45 degrees

16

What provides extra stiffness to the thoracic spine

rib cage

17

What rib adds the most stiffness to the thoracic spine

rib 2

18

How many more times stiffer is the thoracic spine with the ribs

2.5 times more stiff
4 times more resistant to compression

19

What is the GROM of flexion in the thoracics

50 degrees

20

What is the GROM of extension in the thoracics

not included in the AMA guideline

21

Which direction does the SROM of the increase in thoracics with flexion

S->I
4 degree upper
6 degrees middle
12 degrees lower

22

What is the IAR for the flexion of thoracics

central superior portion of the subadjacent body

23

What is the IAR of extension in the thoracics

central inferior portion of the vertebral body

24

Which direction does the disc bulge and retract during movement

bulges on the concave side
retracts on the convex side

25

What is the GROM during lateral flexion of the thoracics

38 degrees to each side

26

What is the trend from SROM in the thoracics during lateral flexion

generally uniform with slight increase in lower thoracics
T1-9: 6 degrees
T10-12: 8-9 degrees

27

What is the IAR of lateral flexion in the thoracics for lateral flexion

contralateral subadjacent vertebral body

28

What are the patterns of movement in the upper thoracics for lateral flexion

Lateral flexion is coupled with rotation to the same side
SPs rotate to the convexity

29

What is the pattern of motion in the mid thoracics for lateral flexion

minimal coupled movement
slight coupled rotation may go in either direction

30

What is the pattern of motion in the lower thoracics for lateral flexion

coupled rotation may go in either direction