Ribs: Morphology Flashcards Preview

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

Flashcards in Ribs: Morphology Deck (50)
Loading flashcards...
1
Q

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

A
  • head
  • neck
  • tubercle
2
Q

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

A

two articular surfaces and the interarticular crest

3
Q

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

A

the costocentral joint

4
Q

What is the classification of the costocentral joint?

A

synovial plane (diarthrosis arthrodia)

5
Q

What attaches to the interarticular crest of the rib?

A

the interarticular lig

6
Q

What are the attachment sites for the interarticular lig?

A

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

7
Q

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

A

fibrous (amphiarthrosis) syndesmosis

8
Q

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

A

crest of the rib

9
Q

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

A

the superior costotransverse lig

10
Q

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

A

the inferior costotransverse lig

11
Q

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

A

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

12
Q

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

A

the transverse costal facet of a thoracic transverse tubercle

13
Q

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

A

the costotransverse joint

14
Q

What is the classification of the costotransverse joint?

A

synovial plane (diarthrosis arthrodia)

15
Q

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

A

the lateral costotransverse ligament

16
Q

What are the attachment sites for the lateral costotransverse lig?

A

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

17
Q

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

A

fibrous (amphiarthrosis) syndesmosis

18
Q

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

A
  • costal angle

- costal groove

19
Q

What is the costal angle of a rib?

A

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

20
Q

What attaches to the costal angle of a rib?

A

the iliocostalis muscle and thoracolumbar aponeurosis/fascia

21
Q

What is the costal groove of a rib?

A

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

22
Q

What is present in the costal groove of a rib?

A

the intercostal artery, vein, and nerve

23
Q

What is present at the sternal end of a rib?

A

costal cartilage

24
Q

What is present on the head of the first rib?

A

a single articular surface

25
Q

What is lacking at the head of the first rib?

A

the interarticular crest

26
Q

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

A

not a well-developed one like on the typical rib

27
Q

What is unique about the body of the first rib?

A

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
Q

What attaches to the scalene tubercle of the first rib?

A

anterior scalene muscle

29
Q

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

A

the groove for the subclavian artery and the first thoracic nerve

30
Q

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

A

the groove for the subclavian vein

31
Q

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

A

neither

32
Q

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

A

the vertebral body demifacets on T1 and T2

33
Q

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

A

the inferior costal demifacet of T1

34
Q

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

A

the superior costal demifacet of T2

35
Q

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

A

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

36
Q

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

A

the superior costotransverse lig from the transverse process of T1

37
Q

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

A

the inferior costotransverse lig from the transverse process of T2

38
Q

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

A

the transverse costal facet of the transverse process of T2

39
Q

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

A

the lateral costotransverse lig from the transverse tubercle of T2

40
Q

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

A
  • 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
Q

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

A

the tuberosity for the serratus anterior

42
Q

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

A

yes

43
Q

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

A

all have a single articular surface on the head for the costocentral joint

44
Q

What features are identified on the body of rib 10?

A

costal angle and costal groove

45
Q

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

A
  • 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
Q

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

A

costal angle and costal groove are under-developed

47
Q

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

A

it is somewhat pointed

48
Q

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

A
  • head has a single articular surface
  • crest of the neck is poorly developed
  • tubercle is absent
49
Q

What is the condition of the body of rib 12?

A
  • the costal angle and costal groove are absent

- shortest of all ribs

50
Q

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

A

it is pointed

Decks in Spinal Anatomy I - Exam 3 Class (94):