Unit 2 - VI. Regions of the Vertebral Column: Thoracic or Dorsal Region (Just Quizzies) Flashcards Preview

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Flashcards in Unit 2 - VI. Regions of the Vertebral Column: Thoracic or Dorsal Region (Just Quizzies) Deck (152)
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1
Q

What features will allow discrimination between T2-T4 and T5-T8 segmental groups?

A

the vertebral body, the tranverse process, articular process and spinous process

2
Q

What is the outline of the vertebral body of a typical thoracic from superior view?

A

triangular

3
Q

What is the name given to the left side appearance of the vertebral body of T5-T8?

A

the aortic impression

4
Q

What is the aortic impression?

A

the flattening of the superior and inferior epiphyseal rims on the left side of the vertebral body of T5-T8 which gives the vertebral body a less scalloped or less indented appearance on that side

5
Q

What part of the vertebral body is most influenced by the aorta at T5-T8?

A

the left side superior and inferior epiphyseal rims

6
Q

What is the height pattern of the typical thoracic vertebral body?

A

the posterior height is greater than the anterior height by one to two millimeters

7
Q

What is the height pattern of intervertebral discs in the typical thoracic region?

A

the intervertebral discs are rather planar or flat with no apparent height difference between anterior and posterior heights

8
Q

What is the principal cause of the posterior curve of the thoracic spine?

A

the vertebral body height differences

9
Q

In terms of the anterior-posterior curves of the vertebral column, what direction will the thoracic spine face?

A

posterior

10
Q

What is another way of naming a posterior curve pattern?

A

a kyphotic curve

11
Q

What joint classifications are identified at the vertebral body of a typical thoracic?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis and synovial plane (diarthrosis arthrodia)

12
Q

How many synovial joints are formed at the vertebral body of a typical thoracic?

A

four

13
Q

How many symphysis joints are formed with the vertebral body of a typical thoracic?

A

two

14
Q

How many joints are formed at the vertebral body of a typical thoracic?

A

typically ten (fourteen if the costocentral stellate/radiate ligaments are included)

15
Q

What is the name given to the joint formed between the vertebral body and rib?

A

costocentral joint

16
Q

How many costocentral joints are formed at the vertebral body of a typical thoracic?

A

four

17
Q

Which of the demi-facets on the vertebral body of a typical thoracic is larger?

A

the superior costal demi-facet

18
Q

What feature will provide assistance in maintaining the stability of the intervertebral foramen in the typical thoracics?

A

the costocentral joint or ribs

19
Q

What is the size relationship between the articulating surface of the head of the rib and the costal demi-facet surface?

A

the rib surface is greater than the costal demi-facet surface

20
Q

Which muscle(s) is attached to the vertebral body of T2 or T3?

A

the longus colli

21
Q

What is the angulation of the pedicle in the typical thoracic region?

A

ten to fifteen degrees posterolateral from the sagittal plane

22
Q

Which X-ray view is used to see into the intervertebral foramen of a typical thoracic?

A

the lateral view

23
Q

Which vertebral notch or incisure is said to be prominent?

A

the inferior vertebral notch or inferior vertebral incisure

24
Q

What is the nerve-vertebral body relationship at the typical thoracic intervertebral foramen?

A

in the intervertebral foramen, the number of the nerve is the same as the number of the upper thoracic in the vertebral couple

25
Q

What is the rib-vertebral body relationship at the typical thoracic intervertebral foramen?

A

in the intervertebral foramen, the number of the rib is the same as the number of the lower thoracic in the vertebral couple

26
Q

What is overlap of the lamina called in the typical thoracic region?

A

shingling

27
Q

In which plane will the size of the vertebral foramen of a typical thoracic be greatest?

A

the transverse plane, the vertebral transverse diameter

28
Q

What is the distance between the transverse tubercles in the typical thoracic region?

A

from T2 each transverse diameter becomes shorter as the transverse processes angle more posterior

29
Q

What is present on the transverse tubercle of a typical thoracic?

A

the transverse costal facet

30
Q

What is the rib-transverse process relationship for the typical thoracics?

A

the number of the rib is the same as the number of the vertebra whose transverse process is being studied; fifth rib with T5 transverse process

31
Q

What is the classification of the costotransverse joint?

A

synovial plane (diarthrosis arthrodia) joint

32
Q

What are the osseous parts of the costotransverse joint?

A

the transverse costal facet and the articular surface of the tubercle of a rib

33
Q

What ligaments support the costotransverse joint of a typical thoracic?

A

the superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

34
Q

The superior costotransverse ligament of rib five will attach to which vertebral feature?

A

the transverse process of T4

35
Q

What ligaments attach to the transverse process of a typical thoracic?

A

intertransverse, capsular costotransverse, superior costotransverse, inferior costotransverse and lateral costotransverse ligaments

36
Q

Which muscles attach to the transverse process of a typical thoracic?

A

longissimus thoracis, longissimus cervicis, longissimus capitis, semispinalis thoracis, semispinalis cervicis, semispinalis capitis, multifidis, rotator longus, rotator brevis, intertransversarii, levator costarum longus and levator costarum brevis

37
Q

Of the muscles attaching to the transverse process of typical thoracics, which ones will attach only to the T5-T8 vertebral segments?

A

semispinalis thoracis and levator costarum longus

38
Q

How do the transverse diameters of the articular processes compare in the T2-T4 region?

A

the superior articular process transverse diameter is greater than the inferior articular process transverse diameter for a given segment

39
Q

How do the transverse diameters of the articular processes compare in the T5-T8 region?

A

the superior articular process transverse diameter is the same as or equal to the inferior articular process transverse diameter for a given segment

40
Q

What is the orientation of the superior articular facet of a typical thoracic?

A

they face backward, upward, and lateral (BUL)

41
Q

What is the orientation of the inferior articular facet of a typical thoracic?

A

they face forward, downward, and medial (ForMeD)

42
Q

What is the curvature of the superior articular facet of a typical thoracic?

A

they are slightly convex

43
Q

What is the curvature of the inferior articular facet of a typical thoracic?

A

they are slightly concave

44
Q

What is the joint classification of the articular facet joint?

A

synovial plane (diarthrosis arthrodia) joint

45
Q

How many synovial joints are present at a typical thoracic?

A

ten

46
Q

Identify the synovial joint surfaces present on a typical thoracic.

A
two superior costal demi-facets,
two inferior costal demi-facets,
two transverse costal facets,
two superior articular facets,
two inferior articular facets
47
Q

What is the name given to the overlap of spinous processes in the thoracic region?

A

imbrication

48
Q

Imbrication will be more pronounced for what region of the thoracics?

A

T5-T8

49
Q

Which thoracic has the longest spinous process?

A

T8

50
Q

What is the angulation of the spinous process of T2-T4?

A

the undersurface of T2-T4 spinous processes will angle up to forty degrees from the horizontal plane

51
Q

What is the angulation of the spinous process of T5-T8?

A

the undersurface of T5-T8 spinous processes will angle up to sixty degrees from the horizontal plane

52
Q

What joint classification is associated with typical thoracic spinous process ligaments?

A

fibrous (amphiarthrosis) syndesmosis joint

53
Q

Which muscles may attach to the spinous process of a typical thoracic?

A

trapezius, latissimus dorsi, rhomboid major, serratus posterior superior, splenius cervicis, splenius capitis, spinalis thoracis, spinalis cervicis, spinalis capitis, semispinalis thoracis, multifidis, rotator longus, rotator brevis and interspinalis

54
Q

Which muscles attaching to the spinous process of a typical thoracic are not included in any muscle layer of the true back?

A

splenius cervicis, splenius capitis and interspinalis

55
Q

What joint classifications are present at every typical thoracic vertebra?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis and synovial plane (diarthrosis arthrodia)

56
Q

What is the appearance of the superior surface of the vertebral body of T1?

A

it is somewhat cup-shaped with elevations at the posterior and lateral margin

57
Q

What may the elevations on the vertebral body of T1 represent?

A

uncinate processes

58
Q

What is the appearance of the inferior surface of the vertebral body of T1?

A

typically flat, lacking anterior and posterior lips characteristic of the cervicals

59
Q

How many synovial joints are formed at the vertebral body of T1?

A

four normally

60
Q

How many symphysis joints are formed with the vertebral body of T1?

A

two

61
Q

How many syndesmosis joints are formed at the vertebral body of T1?

A

typically four are identified (as many as eight if the rib articulation is included)

62
Q

How many joints are formed at the vertebral body of T1?

A

typically ten (fourteen if the rib ligaments are included)

63
Q

How many costocentral joints are formed at the vertebral body of T1?

A

four

64
Q

What synovial joint surfaces are present on the T1 vertebral body?

A

the right and left superior costal facet

the right and left inferior costal demi-facet

65
Q

What is the rib-vertebral body combination at the intervertebral foramen for the eighth cervical nerve?

A

the superior costal facet of T1 will joint with the articular surface of the head of the first rib

66
Q

What ligament supports the costocentral joint of the first rib?

A

the costocentra stellate/radiate ligament

67
Q

What ligaments support the costocentral joint of the second rib?

A

the costocentral stellate/radiate ligament and the costocentral interarticular or intra-articular ligament

68
Q

Which muscle(s) is attached to the vertebral body of T1?

A

the longus colli

69
Q

What ligaments support the costotransverse joint of T1?

A

the inferior costotransverse and lateral costotransverse ligaments

70
Q

What ligament is absent at the costotransverse joint of T1?

A

the superior costotransverse ligament

71
Q

Which costotransverse joint will the superior costotransverse ligament of T1 support?

A

the second rib costotransverse joint

72
Q

What muscles attach to the transverse process of T1?

A

longissimus thoracis, longissimus cervicis, longissimus capitis, semispinalis cervicis, semispinalis capitis, multifidis, rotator longus, rotator brevis, intertransversarii, levator costarum brevis

73
Q

Which specific transversospinalis muscle is absent from T1?

A

semispinalis thoracis

74
Q

What is the orientation of the superior articular facet of T1?

A

they face backward, upward and lateral (BUL)

75
Q

What is the orientation of the inferior articular facet of T1?

A

they face forward, downward and medial (ForMeD)

76
Q

What is the classification of the articular facet joint?

A

synovial plane (diarthrosis arthrodia)

77
Q

How many synovial joints are present at T1?

A

ten

78
Q

How many synovial joint surfaces for ribs are present at T1?

A

six

79
Q

Which vertebrae have been identified as forming the vertebral prominence?

A

C6, C7, T1

80
Q

What is the gender bias associated with T1 as the vertebral prominence?

A

males (9%) are more likely than females (6%) to demonstrate T1 as the vertebral prominence

81
Q

What muscles attach to the spinous process of T1?

A

the trapezius, rhomboid minor, serratus posterior superior, splenius capitis, spinalis thoracis, spinalis cervicis, spinalis capitis, semispinalis thoracis, multifidis, rotator longus, rotator brevis, interspinalis

82
Q

Which synovial joint surfaces may be absent from the vertebral body of T9?

A

inferior costal demi-facets

83
Q

Which muscles attach to the transverse process of T9?

A

the longissimus thoracis, semispinalis thoracis, multifidis, rotator longus, rotator brevis, intertransversarii, levator costarum longus and levator costarum brevis

84
Q

Which is the last thoracic vertebra to have an inferior costal demi-facet?

A

T9

85
Q

What muscles attach to the spinous process of T9?

A

the trapezius, latissimus dorsi, multifidis, rotator longus, rotator brevis and interspinalis

86
Q

Which muscles are conspicuously absent absent at the T9 spinous process?

A

spinalis and semispinalis

87
Q

How many synovial joints are formed at the vertebral body of T10?

A

two

88
Q

How many symphysis joints are formed with the vetebral body of T10?

A

two

89
Q

How many syndesmosis joints are formed at the vertebral body of T10?

A

typically four are identified (as many as eight if theh costocentral stellate/radiate ligaments are included)

90
Q

How many joints are typically formed at the vertebral body of T10?

A

typically eight (twelve if the costocentral stellate/radiate ligaments are included)

91
Q

Which synovial joint surface is absent from the vertebral body of T10?

A

inferior costal demi-facets

92
Q

Para-articular processes are more commonly observed on which segment of the spine?

A

T10

93
Q

What muscles attach to the transverse process of T10?

A

longissimus thoracis, semispinalis thoracis, multifidis, rotator longus, rotator brevis, intertransversarii, levator costarum longus and levator costarum brevis

94
Q

Which rib related facet is absent on T10?

A

the inferior costal demi-facet

95
Q

What is the orientation of the spinous process of T10?

A

posterior and slightly inferior, it will shorten and become more horizontal

96
Q

A dimpling or depression of the skin in the thoracic region is often characteristic of the location of which segment?

A

T10

97
Q

What muscles attach to the spinous process of T10?

A

the trapezius, latissimus dorsi, multifidis, rotator longus, rotator brevis and interspinalis

98
Q

What name is given to T11?

A

the anticlinal vertebra

99
Q

How many synovial joints are formed at the vertebral body of T11?

A

two

100
Q

How many symphysis joints are formed at the vertebral body of T11?

A

two

101
Q

How many joints are typically formed at the vertebral body of T11

A

typically eight (twelve if the costocentral stellate/radiate ligaments are included)

102
Q

What is present at the tip of the transverse process of T11?

A

the transverse tubercle

103
Q

Which vertebra is the last segment to demonstrate a transverse costal facet?

A

T10

104
Q

What ligaments form the costotransverse joint of T11?

A

the superior costotransverse, and slightly developed inferior costotransverse and lateral costotransverse ligaments

105
Q

Which costotransverse joint will the superior costotransverse ligament at the transverse process of T11 support?

A

the twelfth rib costotransverse joint

106
Q

What muscles attach to the transverse process of T11?

A

longissimus thoracis, semispinalis thoracis, multifidis, rotator longus, rotator brevis, intertransversarii, and levator costarum brevis

107
Q

Which levator costarum muscle is absent at T11?

A

levator costarum longus

108
Q

Which segment is the last to demonstrate an attachment for the levator costarum longus?

A

T10

109
Q

What is the orientation of the superior articular facets of T11?

A

they face backward, upward, and lateral (BUL)

110
Q

What is the orientation of the inferior articular facets of T11?

A

they face forward, downward, and medial (ForMeD)

111
Q

How many synovial joints are typically present at

T11?

A

six

112
Q

What muscles attach to the spinous process of T11?

A

trapezius, latissimus dorsi, serratus posterior inferior, iliocostalis lumborum, spinalis thoracis, multifidis, rotator longus, rotator brevis, and interspinalis

113
Q

At which segments of the thoracic spine will the spinalis muscle not attach?

A

T9, T10

114
Q

Which erector spinae muscle uniquely attaches to the spinous process of T11?

A

iliocostalis lumborum

115
Q

How many synovial joints are formed at the vertebral body of T12?

A

two

116
Q

How many symphysis joints are formed with the vertebral body of T12?

A

two

117
Q

How many syndesmosis joints are formed at the vertebral body of T12?

A

four are typically identified (as many as six if the costocentral stellate/radiate ligaments are included)

118
Q

How many joints are typically formed at the vertebral body of T12?

A

typically eight (ten if the costocentral stellate/radiate ligaments are included)

119
Q

Which muscle(s) is attached to the vertebral body of T12?

A

psoas major and psoas minor

120
Q

What is present at the transverse process region of T12?

A

three tubercles of variable size

121
Q

Which tubercle on T12 represents the transverse process?

A

the lateral tubercle

122
Q

Which tubercle on T12 represents the mammillary process of the lumbars?

A

the superior tubercle

123
Q

Which tubercle on T12 represents the accessory process of the lumbars?

A

the inferior tubercle

124
Q

What ligaments form the costotransverse joint of the twelfth rib?

A

the superior costotransverse ligament from T11 and the lumbocostal ligament from L1

125
Q

Which costotransverse ligament(s) are attached at T12?

A

none; the capsular, superior, inferior, and lateral costotransverse ligaments lack an attachment to T12

126
Q

What muscles attach to the transverse process region of T12?

A

the longissimus thoracis, semispinalis thoracis, multifidis, rotator longus, rotator brevis and intertransversarii

127
Q

Which segment is the last to demonstrate a levator costarum brevis attachment?

A

T11

128
Q

Which segment is the last to demonstrate a levator costarum longus attachment?

A

T10

129
Q

What is the orientation of the superior articular facets of T12?

A

they face backward, upward, and lateral (BUL)

130
Q

What is the orientation of the inferior articular facets of T12?

A

they face forward, downward, and lateral (FoLD)

131
Q

What is the curvature of the inferior articular facets of T12?

A

they are significantly convex

132
Q

How many synovial joints are typically present at T12?

A

six

133
Q

Identify the synovial joint surfaces typically present on T12?

A

two superior costal facets, two superior articular facets, two inferior articular facets

134
Q

What muscles attach to the spinous process of T12?

A

the trapezius, latissimus dorsi, serratus posterior inferior, iliocostalis lumborum, spinalis thoracis, multifidis, rotator longus, rotator brevis and interspinalis

135
Q

Which erector spinae muscle is unique in its attachment to the T12 spinous process?

A

iliocostalis lumborum

136
Q

Which muscles attaching to the spinous process of T12 are not included in any muscle layer of the true back?

A

interspinalis

137
Q

Which muscle(s) attach to the vertebral body of thoracic vertebrae?

A

longus colli, psoas major, and psoas minor

138
Q

Which thoracic is first to demonstrate the attachment of the levator costarum brevis?

A

T1

139
Q

Which thoracic is last to demonstrate the attachment of the levator costarum brevis?

A

T11

140
Q

What joint classifications are present at T12?

A

fibrous (amphiarthrosis) syndesmosis, cartilaginous (amphiarthrosis) symphysis and synovial (diarthrosis arthrodia) joint

141
Q

Which erector spinae muscle will attach along the length of the thoracic spine?

A

longissimus

142
Q

Which thoracic is the last to demonstrate an attachment at the transverse process for the semispinalis muscle group?

A

T12

143
Q

Which thoracic is first to demonstrate the attachment of the levator costarum longus?

A

T7

144
Q

Which thoracic is last to demonstrate the attachment of the levator costarum longus?

A

T10

145
Q

Rhomboid minor will attach to the spinous process of which thoracic(s)?

A

T1 only

146
Q

Rhomboid major will attach to the spinous process of which thoracic(s)?

A

T2-T5

147
Q

Which thoracic vertebrae will demonstrate a spinous process attachment for the serratus posterior superior?

A

T1-T3

148
Q

Which thoracic vertebrae will demonstrate a spinous process attachment for the serratus posterior inferior?

A

T11-T12

149
Q

Which thoracics demonstrate a spinous process attachment for the splenius muscles?

A

T1-T6

150
Q

Which thoracics demonstrate a spinous process attachment for the iliocostalis lumborum?

A

T11-T12

151
Q

Which thoracics lack any spinalis muscle group attachment on their spinous process?

A

T9-T10

152
Q

Which thoracic is the last to demonstrate a spinous process attachment for the semispinalis?

A

T6