lumbar region ex 2 QQ Flashcards Preview

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Flashcards in lumbar region ex 2 QQ Deck (45)
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1

what parts of the vertebra may be used to distinguish L1-L4 from L5?

vertebral body
pedicle
articular process
transverse process
spinous process

2

what is the generic shape of the typical lumbar vertebral body from the cranial view?

reniform or kidney shaped

3

what accounts for the direction of the lumbar curve?

vertebral body and intervertebral disc have a greater anterior height than posterior height

4

what is the effect of aging on the vertebral body of a lumbar vertebra?

decrease in height, increase in circumference

5

what muscles may attach to a typical lumbar vertebral body?

psoas major and minor

6

psoas minor will only attach to the vertebral body of which segments?

T12, L1

7

what is the name given to the ligaments that attach the vertebral body to the articular process?

transforaminal ligaments

8

what ligaments attach the vertebral body to the transverse process?

corporotransverse ligaments

9

what names identify ligaments that attach the dura mater to the vertebral body or pedicle?

anterior, posterior and lateral Hofmann ligaments
proximal sleeve ligaments

10

Hofmann ligaments are identified in which regions along the vertebral column?

cervical- upper thoracic region and lumbar region

11

cervical- upper thoracic Hofmann ligaments will attach what structures together?

dura mater to segments above

12

what is the highest level known to demonstrate Hofmann ligaments?

C6

13

what is the proposed function of the cervical- upper thoracic Hofmann ligaments?

resist caudal movement of the dural sac
resist gravitational forces on the dura and cord

14

Lumbar Hofmann ligaments will attach what structures together?

dura mater to lower segmental levels

15

what is the proposed function of the lumbar Hofmann ligaments?

resist cranial movement of the dural sac during flexion

16

what is the proposed function of the proximal root sleeve ligaments?

resist displacement of the peripheral nerve system in the intervertebral foramen

17

what osseous conditions of lumbar vertebrae facilitate a spinal tap in this region?

overlap of the laminae, shingling diminishes
overlap of spinous processes, imbrication diminishes

18

what is the outline of the vertebral foramen of a typical lumbar vertebra?

triangular

19

how does the size of the vertebral foramen differ along the spine?

cervicals have the greatest size, lumbars next, thoracics smallest

20

what part of the central nerve system is present in the lumbar spine?

conus medullaris is typically present in the vertebral foramen of L1

21

what is the name of the elevation near the origin of the lumbar transverse process?

accessory process

22

a styloid process occurs with what frequency and as a result of what condition?

7% occurrence as a result of congenital elongation of the lumbar accessory process

23

what parts of a vertebra are attached via the mammillo-accessory ligament?

mammillary process and accessory process of the same segment

24

what was believed to be entrapped by the mammillo-accessory ligament?

medial branch of the dorsal ramus of a lumbar spinal nerve

25

what muscles attach to the lumbar accessory process?

longissimus thoracis
intertransversarii

26

what muscles may attach to the transverse process of a typical lumbar?

Psoas major
Quadratus lumborum
Longissimus thoracis
Rotator brevis
Rotator longus
Intertransversarii

27

what are the posterior elements of the vertebra?

zygapophysis
lamina
spinous process

28

what are the anterior elements of the vertebra?

vertebral body
pedicle

29

what is the orientation of the typical lumbar superior articular facet?

BUM

backward upward medial, typically concave

30

what is the orientation of the typical lumbar inferior articular facet?

FoLD

forward lateral downward, significant convexity