Regions of the Vertebral Column: Lumbar Spine (Typical Lumbar Spine: L1-L4/Atypical Lumbar Vertebrae: L5) Flashcards Preview

Spinal Anatomy > Regions of the Vertebral Column: Lumbar Spine (Typical Lumbar Spine: L1-L4/Atypical Lumbar Vertebrae: L5) > Flashcards

Flashcards in Regions of the Vertebral Column: Lumbar Spine (Typical Lumbar Spine: L1-L4/Atypical Lumbar Vertebrae: L5) Deck (40)
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1

What accounts for the direction of the lumbar curve?

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

2

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

Decrease in height, increase in circumference

3

How many joint surfaces are present on the vertebral body of a typical lumbar?

Six

4

What muscles may attach to a typical lumbar vertebral body?

Psoas major and psoas minor

5

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

T12, L1

6

What is the name given to ligaments which attach the vertebral body to articular process?

Transforaminal ligaments

7

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

Cervical--upper thoracic region and lumbar region

8

Cervical--upper thoracic Hofmann ligaments will attach what structure together?

Dura mater to segments above

9

What is the highest level known to demonstrate Hofmann ligaments?

C6

10

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

11

Lumbar Hofmann ligaments will attach what structures together?

Dura mater to lower segmental levels

12

What is the proposed function of the lumbar Hofmann ligaments?

Resist cranial movement of the dural sac during flexion

13

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

14

Beginning with the L1 transverse process, what is the generic direction and relative length of each succeeding lumbar transverse process?

Each transverse process is directed straight lateral and increases in length from L1-L3. L4 then begins to decrease in length

15

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

Accessory process

16

Congenital elongation of the lumbar accessory process results in what feature?

Styloid process

17

Congenital elongation of the lumbar accessory process occurs with what frequency?

7% occurence

18

What ligament(s) will attach to the lumbar accessory process?

Mammillo-accessory ligament

19

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

the medial branch of the dorsal ramus of a lumbar spinal nerve

20

What muscle(s) attach to the lumbar accessory process?

Longissimus thoracis and intertransversarii

21

what ligament attaches the twelfth rib to the transverse process of L1?

The lumbocostal ligament

22

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

Psoas major, quadratus lumborum, longissimus thoracis, rotator brevis, rotator longus, and intertransversarii

23

What ligaments attach to the transverse process of a typical lumbar vertebra?

The lumbocostal, mammillo-accessory, and intertransversarii ligaments

24

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

Backward, upward, ,medial (BUM); typically concave

25

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

Forward, lateral, downward (FoLD); significant convexity

26

What is the name given to the projection on the lumbar superior articular process?

Mammillary process

27

What muslce(s) will attach to the mammmillary process?

Multifidis and intertransversarii

28

How many synovial joints are present on a typical lumbar vertebra?

Four

29

What i the position of he lumbar zygapophysis in children?

the zygapophysis lies in the coronal plane

30

What is the position of the lumbar zyapophysis in adults?

They zygapophysis lies in the sagittal plane for L1/L2, L2/L3, and L3/L4; the zygapophysis lies in the coronal plane for L4/L5 and L5/S1

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