Day 21 (Typical Thoracic Vertebrae T2-T8)

Question 1

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

Answer 1

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

Question 2

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

Answer 2

ten to fifteen degrees posterolateral from the sagittal plane

Question 3

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

Answer 3

the lateral view

Question 4

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

Answer 4

shingling

Question 5

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

Answer 5

oval to circular

Question 6

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

Answer 6

the transverse plane, the vertebral transverse diameter

Question 7

What are the osseous parts of the costotransverse joint?

Answer 7

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

Question 8

What ligaments support the costotransverse joint of a typical thoracic?

Answer 8

the superior costotransverse, inferior costotransverse, and lateral costotransverse ligaments

Question 9

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

Answer 9

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

Question 10

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

Answer 10

at T2-T4 the width between the superior articular process is greater than the width between the inferior articular processes of that vertebra
at 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

Question 11

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

Answer 11

they face backward, upwad, and lateral (BUL)

Question 12

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

Answer 12

they face forward, downward, and medial (ForMeD)

Question 13

How many synovial joints are present at a typical thoracic?

Answer 13

ten

Question 14

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

Answer 14

six

Question 15

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

Answer 15

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

Question 16

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

Answer 16

imbrication

Question 17

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

Answer 17

T5-T8

Question 18

Which thoracic has the longest spinous process?

Answer 18

T8

Question 19

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

Answer 19

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

Question 20

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

Answer 20

the 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