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Flashcards in Osteology Of The Anterior Thorax Deck (54):
1

What vertebral levels correspond to the position of the manubrium sterni?

T3-T4

2

Which ribs will articulate with the manubrium sterni?

The first and second ribs

3

What separates the manubrium sterni and corpus sterni?

The manubrisoternal symphysis

4

What vertebral levels correspond to the position of the corpus sterni?

T5-T9

5

How many sternabrae form the corpus sterni?

4

6

What surface feature on the corpus sterni IDes the location of the synchondroses?

Transverse lines

7

What articular sites for the costal cartilage of ribs will be IDed on the corpus sterni?

Costal notches II-VI

8

What feature of the corpus sterni is present is present in 4-7%of the population?

A sternal Foramen

9

What are the primary parts of the vertebral end of a typical rib?

The head, neck and tubercle

10

What features may be IDed on the neck of a typical rib?

The crest of the rib

11

What attaches to the crest of the neck of the rib?

The superior costotransverse ligamnet

12

What attaches beneath the crest of the neck of the rib?

The inferior costotransverse ligament

13

What features may be IDed on the tubercle of a typical rib?

The articular surface of the tubercle and the non-articular surface of the tubercle

14

What joints with the articular surface of the tubercle of the rib?

The transverse costal facet of a thoracic transverse tubercle

15

What attaches to the non-articular surface of the tubercle of a rib?

The lateral costotransverse ligament

16

What features may be IDed on the body (corpus or shaft) of a typical rib?

The costal angle and costal groove

17

What attaches to the costal angle of a rib?

The Iliocostalis muscle and thoracolumbar aponeurosis/fascia

18

What is unique about he Boyd of the first rib?

The Boyd of the first rib if flattened and has a scalene tubercle flanked by the groove for the subclavian artery and vein

19

What attaches to the scalene tubercle of the first rib?

The anterior scalene muscle

20

Which groove on the body of the first rib is close to the vertebral end?

The groove for the subclavian artery and 1st thoracic nerve

21

Which groove on the body o fat e1st rib is close to the sternal end?

The groove for the subclavian vein

22

Is either the costal angle or groove apparent on the first rib?

No

23

What does the superior articular surface on the head of the second rib joint with?

The inferior costal semi facet of T1

24

What does the interarticular ligament of the head of the second rib joint with?

The interarticular crest on the head of the second rib and the intervertebral disc between T1 and T2

25

What specifically will attach to the crest of the neck of the second rib?

The superior costotransverse ligament form the transverse process of T1a

26

What specifically attaches to the back of the neck of the second rib?

The inferior costotransverse ligament form the transverse process of T2

27

What specifically attaches to the non-articular surface of the tubercle of the second rib?

The lateral costotransverse ligament from the transverse tubercle of T2

28

What unique feature is present on the body of the second rib?

The tuberosity for the Serratus anterior

29

How is the vertebral end of ribs 10, 11 and 12 similar to that of the first rib?

All have a single articular surface on the head for the costotransverse joint

30

What features are IDed on the body of rib 10?

The costal angle and the costal groove

31

What features may be present on the body of the 11th rib?

The costal angle and costal groove are under-developed

32

What is the condition of the body of rib 12?

The costal angle and groove are absent and it is the shortest rib

33

What classifications are given to ribs articulating with the sternum in the typical adult skeletons?

True ribs, costa verae, vertebrosternal ribs

34

What are the classifications of ribs 3-7 in the typical adult skeleton?

Typical ribs, true ribs, costa verae, and vertebrosternal ribs

35

What are the classifications of ribs 1 and 2 in the typical adult skeleton?

Atypical ribs, true ribs, costa verae, and vertebrosternal ribs

36

What are the classifications of ribs 8 and 9 in the typical adult skeleton?

Typical ribs, false ribs, costa spuriae, and vertebrochondral ribs

37

What are the classification for rib 10 in the typical adult skeleton?

Atypical rib, false rib, costa spuriae, and vertebrochondral rib

38

What are the classifications of ribs 11 and 12 in the typical adult skeleton?

Atypical ribs, false ribs, costa spuriae, and vertebral ribs

39

What are the characteristics of the (amphiarthrosis) synchondrosis?

They are primary cartilage joints, temporary in longevity, composed of hyaline cartilage and form between ossification centers within a cartilage within a cartilage template

40

What are examples of a permanent (amphiarthrosis) synchondrosis?

Costochondral joints or the first sternochondral joint

41

What are the characteristics of a (amphiarthrosis) symphysis?

Limited motion, median plane location, support ligaments both anterior and posterior to the joint, more permanent in longevity than synchondrosis and they occur between bones developing by endochondral ossification

42

Which ribs demonstrate costochondral joints?

All

43

What are the joint surfaces of the costochondral joint?

The costal cartilage with the sternal end of each rib

44

What is the joint classification of the costochondral joint?

Cartilaginous (amphiarthrosis) synchondrosis

45

What is the sternocostal or sternochondral joint?

The joint between the costal cartilage and the costal notches of hot sternum

46

What ribs will participate in the sternocostal or sternochondral joint?

Ribs 1-7

47

What is the classification of the first sternocostal or sternochondral joint?

Cartilaginous (amphiarthrosis) synchondrosis

48

What is the classification of the 2nd-7th sternocostal joints?

Synovial plane (diarthrosis arthrodia)

49

Wha are the joint surfaces of the second sternocostal joint?

The costal cartilage of the 2nd rib with the costal notch II of the manubrium sterni, costal notch II of the corpus sterni and the manubrium symphysis

50

Which of the sternocostal or sternochondral ligaments is unique to the second sternocostal joint?

The intra-articular ligament

51

What is the classification of the 6th-9th interchondral joints?

Synovial plane (diarthrosis arthrodia)

52

What is the classification of the 5/6 or 9/10 interchondral joint?

Fibrous (amphiarthrosis) syndesmosis

53

Which costal cartilages fail to form a joint at their sternal end?

The 11th and 12th costal cartilages

54

In the developing sternum, what joint classification is present between the manubrium, corpus, and xiphoid process?

Cartilaginous (amphiarthrosis) symphysis