Day 20 (Typical Thoracic Vertebrae T2-T8)

Question 1

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

Answer 1

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

Question 2

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

Answer 2

triangular

Question 3

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

Answer 3

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

Question 4

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

Answer 4

the aortic impression

Question 5

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

Answer 5

the left side superior and inferior epiphyseal rims

Question 6

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

Answer 6

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

Question 7

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

Answer 7

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

Question 8

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

Answer 8

the vertebral body height difference

Question 9

What is another way of naming a posterior curve pattern?

Answer 9

a kyphotic curve

Question 10

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

Answer 10

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

Question 11

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

Answer 11

four

Question 12

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

Answer 12

two

Question 13

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

Answer 13

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

Question 14

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

Answer 14

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

Question 15

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

Answer 15

costocentral joint

Question 16

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

Answer 16

four

Question 17

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

Answer 17

the superior costal demi-facet

Question 18

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

Answer 18

the costocentral joint or ribs

Question 19

What ligaments support the costocentral joint?

Answer 19

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

Question 20

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

Answer 20

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

Question 21

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

Answer 21

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

Question 22

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

Answer 22

the longus colli