Chapter 3 Thorax and Ribcage Flashcards Preview

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Flashcards in Chapter 3 Thorax and Ribcage Deck (45)
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1

T1-3 rule of 3's?

SP is located at level of corresponding TP

2

T4-6 rule of 3's?

SP is located one-half a sefment below the corresponding TP

3

T7-9 rule of 3's?

SP is located at level of TP of vertebrae below

4

Follows same rules as T7-9?

T10

5

Follows same rules as T5-7?

T11

6

Follows same rules as T1-3?

T12

7

Spine of scapula is at what level?

T3

8

Inferior angle of scapula corresponds with what?

Spinous process of T7

9

Sternal notch is at what level?

T2

10

Sternal angle (angle of Louis) attaches to which rib and what level is it?

2nd rib, level of T4

11

What is the main motion of the thoracic spine?

Rotation

12

Upper and middle thoracic spine motion?

Rotation > flexion/extension > SB

13

Lower thoracic spine motion?

Flexion/extension > SB > rotation

14

Primary muscles of respiration?

Diaphragm, intercostals

15

Rib attachments for diaphragm?

Ribs 6-12 b/l

16

Vertebral attachments for diaphragm?

L1-3

17

Anterior attachment for diaphragm?

Xiphoid

18

Action of intercostal muscles?

Elevate ribs during inspiration and prevent retractions during inspiration

19

Secondary muscles of respiration?

Scalenes, pec minor, serratus anterior/posteiror, quadratus lumborum, latissimus dorsi

20

What makes a typical rib typical?

Contains Shaft, Head, Angle, Neck, Tubercle (SHANT)

21

What is the difference bt head and tubercle of rib?

Head--articulates with vertebra above and corresponding vertebra; tubercule--articulates with corresponding TP

22

Typical ribs?

3-10

23

Atypical ribs?

1, 2, 11, 12 (ribs with "1" and "2"), sometimes 10

24

Reason why rib 1 is atypical?

Articulates only with T1 and has no angle

25

Reason why rib 2 is atypical?

Has large tuberosity on shaft for serratus anterior

26

Reason why ribs 11 and 12 are atypical?

They articulate only with corresponding vertebrae and lack tubercles

27

Reason why rib 10 may be atypical?

May articulate only with T10

28

True ribs?

1-7 (attach to sternum thru costal cartilages)

29

False ribs?

8-12 (connected by its costal cartilage to the cartilage of the rib superior)

30

Floating ribs?

11, 12