Lumbar Spine Anatomy Flashcards Preview

SCT3 Clinical Assessment > Lumbar Spine Anatomy > Flashcards

Flashcards in Lumbar Spine Anatomy Deck (21)
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1
Q

IVDs act to absorb and transmit __________ loads and tensile stress from one vertebrae to another.

A

AXIAL

2
Q

Which lumbar vertebrae is the largest?

A

5TH

3
Q

TRUE or FALSE

The vertebrae above the 5th sits slightly anterior allowing normal lordotic curve.

A

FALSE

4TH V SITS SLIGHTLY BACKWARD

4
Q

Name the most common segment for problems in the vertebral column?

A

L5 - S1

5
Q

The lumbar facet joints sit in the ___________ plane

A

SAGGITAL

making rotation and side bending limited

6
Q

Name the 3 roles of the lumbar facets?

A
  1. STABILIZE
  2. ALLOW LIMITED MOVEMENT
  3. PROTECT IVDS FROM SHEAR FORCES
7
Q

Which way do superior facet joints face?

A

MEDIAL
and
BACKWARD

8
Q

Which way do inferior facet joints face?

A

LATERAL
and
FORWARD

9
Q

Injury, degeneration, and trauma can lead to the 3 spondys- name them and differentiate?

A

SPONDYLOSIS - degeneration of the IVD
+
SPONDYLOLYSIS - defect in pars interarticularis (bt lamina and pedicle)
+
SPONDYLOLYTHESIS - forward displacement of one vertebrae over another (Darla has)

10
Q

Discs make up ______% of the spinal column, which increases with age.

A

25

11
Q

Name the 2 parts of a disc?

A

ANNULUS FIBROSIS
+
NUCLEUS PULPOSIS

12
Q

Name the 4 injuries which can happen to the IVDs?

A
  1. PROTRUSION
  2. PROLAPSE
  3. EXTRUSION
  4. SEQUESTRATION
13
Q

Protrusion involves NO rupture of the __________ _________.

A

ANNULUS FIBROSIS

14
Q

With IVD prolapse, only outer fibers contain the __________ ___________.

A

NUCLEUS PULPOSIS

15
Q

With ___________, the annulus fibrosis is perforated, and the nucleus pulposis bulges into spinal canal.

A

EXTRUSION

16
Q

In full blown ______________, fragments of the nucleus pulposis are freely floating in spinal canal.

A

SEQUESTRATION

17
Q

Name the resting and closed packed positions of the L spine?

A

RESTING - midway b/t FLEXION and EXTENSION
+
CLOSE-PACKED - EXTENSION

18
Q

If you hear a pop or tearing assessing the lumbar spine, what would you assume was faulty?

A

MUSCLE

19
Q

If your patient experiences numbness assessing the lumbar spine, what would you assume was faulty?

A

PERIPHERAL NERVE
or
NERVE ROOT IRRITATION

20
Q

If you sense catching assessing the lumbar spine, what would you assume was faulty?

A

MUSCLE SPASM
or
FACET JOINT

21
Q

If your patient experiences tingling/warmth/coldness assessing the lumbar spine, what would you assume was faulty?

A

NERVE ROOT
or
CIRCULATION