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Spinal Anatomy Exam 2 > Typical Thoracic Region T2-T8 > Flashcards

Typical Thoracic Region T2-T8 Flashcards

1
Q

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

A

Vertebral body
Transverse process
Articular process
Spinous process

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2
Q

What is the outline of the vertebral body of a typical thoracic form SUPERIOR view?

A

Triangular

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3
Q

On cranial view, what is the outline of the vertebral body for the T5-T8 group?

A

The left side of the vertebral body will be flattened, the right side convex

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4
Q

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

A

The aortic impression

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5
Q

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

A

The left side superior and inferior epiphyseal rims

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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

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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

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8
Q

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

A

The vertebral body height difference

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9
Q

What is another way of naming a posterior curve pattern?

A

A kyphotic curve

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10
Q

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

A

Fibrous ()amphiarthrosis) syndesmosis
Cartilagionous (amphiarthosis) symphysis
Synovial plan (diarthrosis arthrodia)

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11
Q

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

A

FOUR

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12
Q

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

A

TWO

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13
Q

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

A

Four are identified (as many as eight if the costocentral stellate/ radiate ligaments are included)

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14
Q

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

A

Typically 10 (14 if the costocentral stellate/ radiate ligaments are included)

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15
Q

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

A

Costocentral joint

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16
Q

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

A

FOUR

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17
Q

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

A

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 ligaments support the costocentral joint?

A

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

20
Q

What does the costocentral intra-articular or interarticular ligament connect to?

A

Intra-articular or interarticular crest of the head of the rib and the intervertebral disc

21
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

22
Q

What muscle is attached to the vertebral body of T2 or T3?

A

The longus colli

23
Q

What is the position and direction of the pedicle from the typical thoracic vertebral body?

A

The pedicle arises from the upper thrid of the vertebral body and projects posterior and slightly laterally

24
Q

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

A

10-15 degrees posterolateral from the sagittal plane

25
Q

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

A

The lateral view

26
Q

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

A

Shingling

27
Q

What is overlap of the vertebral foramen in the typical thoracic region?

A

Oval to circular

28
Q

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

A

The transverse plane, the vertebral transverse diameter

29
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

30
Q

What ligaments support the costotransverse joint of a typical thoracic?

A

The superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

31
Q

Which muscles may attach to the TRANSVERSE process of a typical thoracis?

A 
Longissimus thoracis
Longissimus cervicis
Longissimus capitis 
Semispinalis Thoracis
Semispinals Cervicis
Semispinalis Capitis
Mltifidis
Rotator longus
Rotator brevis
Intertransversarii
Levator costarum longus
Levator costarum brevis
32
Q

How can you distinguish between a T2-T4 from a T5-T8 segement using the articular process?

A

T2-T4: width between superior articular processes is greater than the width between the inferior articular processes of that vertebra
T5-T8: the width between the superior articular processes is equal to or the same as the width between the inferior articular processes of that vertebra

33
Q

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

A

Backward, upward, and lateral (BUL)

34
Q

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

A

Forward, downward, and medial (ForMeD)

35
Q

How many synovial joints are present at a typical thoracic?

A

10

36
Q

How many synovial joint surfaces for ribs are present on a typical thoracic?

A

6

37
Q

Identify the synovial joint surfaces for ribs that are present on a typical thoracic

A

2 superior costal demi-facets
2 inferior costal demi-facets
2 transverse costal facets

38
Q

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

A

Imbrication

39
Q

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

A

T5-T8

40
Q

Which thoracic has the longest spinous process?

A

T8

41
Q

What is the angulation of the spinous process in the typical thoracic region?

A

The undersurface of T2-T4 spinous processes will angle up to 40 degrees from the horizontal plane
The undersurface of T5-T8 spinous process will angle up to 60 degrees from the horizontal plane

42
Q

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

A 
Trapezius
Latissimus dorsi
Thomboid major
Serratus posterior superior
Splenius cervicis
Splenius capitis
Spinalis thoracis
Spinals cervicis
Spinals capitis
Semispinalis thoracis
Multifidis
Rotator Longus
Rotator brevis
Interspinals

Spinal Anatomy Exam 2 (28 decks)

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