Ribs: Morphology Flashcards Preview

Spinal Anatomy I - Exam 3 > Ribs: Morphology > Flashcards

Flashcards in Ribs: Morphology Deck (50):
1

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

- head
- neck
- tubercle

2

What features may be identified on the head of a typical rib?

two articular surfaces and the interarticular crest

3

What joint is formed between the head of the rib and the vertebral body of a thoracic?

the costocentral joint

4

What is the classification of the costocentral joint?

synovial plane (diarthrosis arthrodia)

5

What attaches to the interarticular crest of the rib?

the interarticular lig

6

What are the attachment sites for the interarticular lig?

the interarticular crest of the head of the rib and the intervertebral disc

7

What is the classification of the joint formed by the interarticular lig?

fibrous (amphiarthrosis) syndesmosis

8

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

crest of the rib

9

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

the superior costotransverse lig

10

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

the inferior costotransverse lig

11

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

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

12

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

the transverse costal facet of a thoracic transverse tubercle

13

What is the name of the joint formed by the articular surface of the tubercle and the transverse costal facet?

the costotransverse joint

14

What is the classification of the costotransverse joint?

synovial plane (diarthrosis arthrodia)

15

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

the lateral costotransverse ligament

16

What are the attachment sites for the lateral costotransverse lig?

the thoracic transverse tubercle and the non-articular surface of the rib

17

What is the classification of the joint formed by the lateral costotransverse lig?

fibrous (amphiarthrosis) syndesmosis

18

What features may be identified on the body of a typical rib?

- costal angle
- costal groove

19

What is the costal angle of a rib?

the location on the body of the rib where there is a directional change toward the sternum

20

What attaches to the costal angle of a rib?

the iliocostalis muscle and thoracolumbar aponeurosis/fascia

21

What is the costal groove of a rib?

the linear depression on the internal and inferior surface of the body

22

What is present in the costal groove of a rib?

the intercostal artery, vein, and nerve

23

What is present at the sternal end of a rib?

costal cartilage

24

What is present on the head of the first rib?

a single articular surface

25

What is lacking at the head of the first rib?

the interarticular crest

26

Is there a crest on the neck of the first rib?

not a well-developed one like on the typical rib

27

What is unique about the body of the first rib?

the body of the first rib is flattened and has a scalene tubercle flanked by the groove for the subclavian artery and the groove for the subclavian vein

28

What attaches to the scalene tubercle of the first rib?

anterior scalene muscle

29

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

the groove for the subclavian artery and the first thoracic nerve

30

Which groove on the body of the first rib is closer to the sternal end?

the groove for the subclavian vein

31

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

neither

32

What will the articular surfaces on the head of the second rib joint with?

the vertebral body demifacets on T1 and T2

33

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

the inferior costal demifacet of T1

34

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

the superior costal demifacet of T2

35

What does the interarticular lig 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

36

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

the superior costotransverse lig from the transverse process of T1

37

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

the inferior costotransverse lig from the transverse process of T2

38

What specifically will the articular surface of the tubercle of the second rib joint with?

the transverse costal facet of the transverse process of T2

39

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

the lateral costotransverse lig from the transverse tubercle of T2

40

For each lig attaching to the second rib, identify the vertebral attachment location.

- capsular costocentral lig: vertebral bodies and intervertebral disc T1/T2
- interarticular lig: intervertebral disc T1/T2
- capsular costotransverse lig: transverse tubercle, T2
- superior costotransverse lig: transverse process, T1
- inferior costotransverse lig: transverse process, T2
- lateral costotransverse lig: transverse tubercle, T2

41

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

the tuberosity for the serratus anterior

42

Is the costal angle and costal groove present on the second rib?

yes

43

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 costocentral joint

44

What features are identified on the body of rib 10?

costal angle and costal groove

45

What distinguishes the vertebral end of rib 11 from typical ribs?

- the single articular surface
- absence of a well-developed crest on the neck
- tubercle may be absent or if present, consists only of a non-articular surface

46

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

costal angle and costal groove are under-developed

47

What is the appearance of the sternal end of the 11th rib?

it is somewhat pointed

48

What helps to distinguish the vertebral end of the 12th rib from other ribs?

- head has a single articular surface
- crest of the neck is poorly developed
- tubercle is absent

49

What is the condition of the body of rib 12?

- the costal angle and costal groove are absent
- shortest of all ribs

50

What is the appearance of the sternal end of the 12th rib?

it is pointed

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