Thoracic or Dorsal Region

Question 1

which thoracic segments are considered the typical thoracics?

Answer 1

t2-t8 segments

Question 2

which thoracic segments are considered the atypical thoracics?

Answer 2

t1,t9-t12

Question 3

what features will allow discrimination between t2-t4 and t5-t8 segmental groups?

Answer 3

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

Question 4

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

Answer 4

traingular

Question 5

what is the name given to the left side appearance of the vertebral body of t5-t8?

Answer 5

the aortic impression

Question 6

what part of the vertebral body is most influenced by the aorta at t5-t8?

Answer 6

the left side superior and inferior epiphyseal rims

Question 7

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

Answer 7

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

Question 8

what is the principle cause of the posterior curve of the typical thoracic spine?

Answer 8

the vertebral body height differences

Question 9

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

Answer 9

posterior

Question 10

what is another way of naming a posterior curve pattern?

Answer 10

a kyphotic curve

Question 11

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

Answer 11

fibrous (amphiarthrosis) syndesmosis, cartilaginous (ampiarthrosis) sympysis, and synovial plane (diarthrosis arthrodial)

Question 12

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

Answer 12

four

Question 13

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

Answer 13

two

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

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

Answer 15

the superior costal demi-facet

Question 16

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

Answer 16

the costocentral joint or ribs

Question 17

what is the rib-vertebral body combination at the intervertebral foramen for the ____ nerve? lets us the t6 nerve

Answer 17

theINFERIOR costal demi-facet of t6 will joint with the SUPERIOR articular surface of the head of the seventh rib
the SUPERIOR costal demi-facet of t7 will joint with the INFERIOR articular surface of the head of the seventh rib

Question 18

what ligaments support the costocentral joint?

Answer 18

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

Question 19

what does costocentral-intraarticular or interarticular ligament connect to?

Answer 19

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

Question 20

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

Answer 20

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

Question 21

which muscle is attached to the VERTEBRAL BODY of t2 or t3

Answer 21

the longus colli

Question 22

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

Answer 22

ten to fifteen degrees posterolateral to the sagittal plane

Question 23

which xray view is used to see into the intervertebral foramen of a typical thoracic?

Answer 23

the lateral view

Question 24

what is overlap of the LAMINA called in the typical thoracic region?

Answer 24

shingling

Question 25

what is the outline of the VERTEBRAL FORAMEN in the typical thoracic region?

Answer 25

oval to circular

Question 26

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

Answer 26

the transverse plane, the vertebral transverse diameter

Question 27

what ligaments support the costotransverse joint of a typical thoracic?

Answer 27

the superior costotransverse, inferior costotransverse, the lateral costotransverse ligaments

Question 28

the superior costotransverse ligament of the transverse process of t4 will attach to rib what?

Answer 28

rib five

Question 29

the inferior costotransverse ligament of the transverse process of t5 will attach to rib what?

Answer 29

rib 5

Question 30

the lateral costotransverse ligament of the transverse process of t5 will attach to rib what?

Answer 30

rib 5

Question 31

which muscles may attach to the TRANSVERSE PROCESS of a typical thoracic?

Answer 31

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

Question 32

how do the transverse diameters of the articular processes compare in the t2-t4 regions?

Answer 32

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

Question 33

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

Answer 33

face backward upward and alteral BUL

Question 34

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

Answer 34

forward downward and medial ForMeD

Question 35

how many SYNOVIAL joints are present at a typical thoracic?

Answer 35

ten

Question 36

how many synovial joint surfaces for ribs are present on the typical thoracic?

Answer 36

six

Question 37

identify the synovial joint surfaces for the ribs that are present on the typical thoracic?

Answer 37

2 superior costal demi-facets, two inferior costal demi-facets, and 2 transverse costal facets

Question 38

what name is given to the region between the superior and inferior articular processes in the typical thoracics?

Answer 38

the pars interarticularis

Question 39

what is the orientation of the spinous process of a typical thoracic?

Answer 39

they slant backward and downward

Question 40

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

Answer 40

t5-t8

Question 41

which thoracic has the longest spinous process?

Answer 41

t8

Question 42

which muscles may attach to the spinous of a TYPICAL thoracic?

Answer 42

trazius, 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

Question 43

which muscles attaching to the spinous process of a typical thoracic are not included in any muscle layer of the TRUE BACK?

Answer 43

splenius cervicis, splenius capitis and interspinalis

Question 44

what joint classifications are present at every typical thoracic vertebra?

Answer 44

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