Quizzies (Typical Lumbar Spine: L1-L4) Flashcards Preview

Spinal Anatomy Exam 2 > Quizzies (Typical Lumbar Spine: L1-L4) > Flashcards

Flashcards in Quizzies (Typical Lumbar Spine: L1-L4) Deck (28)
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0
Q

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

A

Decrease in height, increase in circumference

1
Q

What accounts for the direction of the lumbar curve?

A

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

2
Q

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

A

Six

3
Q

What muscles may attach to a typical lumbar vertebral body?

A

Psoas major and psoas minor

4
Q

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

A

T12, L1

5
Q

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

A

Transforminal ligaments

6
Q

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

A

Cervical-upper thoracic region and lumbar region

7
Q

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

A

Dura mater to segments above

8
Q

What is the highest level known to demonstrate Hofmann ligaments?

A

C6

9
Q

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

A

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

10
Q

Lumbar Hofmann ligaments will attach what structures together?

A

Dura mater to lower segmental levels

11
Q

What is the proposed function of the lumbar Hofmann ligaments?

A

Resist cranial movement of the dural sac during flexion

12
Q

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

A

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

13
Q

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

A

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

14
Q

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

A

Accessory process

15
Q

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

A

Styloid process

16
Q

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

A

7% occurrence

17
Q

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

A

Mammillo-accessory ligament

18
Q

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

A

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

19
Q

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

A

Longissimus thoracis and intertransversarii

20
Q

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

A

The lumbocostal ligament

21
Q

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

A

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

22
Q

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

A

The lumbocostal, mammillo-accessory, and intertransverse ligaments

23
Q

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

A

Backward, upward, medial (BUM); typically concave

24
Q

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

A

Forward, lateral, downward (FoLD); significant convexity

25
Q

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

A

Mammillary process

26
Q

What muscles will attach to the mammillary process?

A

Multifidis and intertransversarii

27
Q

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

A

Four