Lumbar

Question 1

Normal range for lumbar lordosis

Answer 1

47-64 degrees

Question 2

66% of lumbar lordosis originates from the segments..

Answer 2

L4-S1

Question 3

Decreased lumbar lordosis is associated with…

Answer 3

L5- S1 disc degeneration

Question 4

what happens to intradiscal pressure with decreased lumbar lordosis (flat back)

Answer 4

higher pressure

Question 5

anterior elements of lumbar spine

Answer 5

• 2 vertebral bodies
• IVD
• longtiduinal ligaments

Question 6

Posterior elements of the lumbar spine

Answer 6

• vertebral arches
• spinous and transverse processes
• facet joints
• posterior ligaments

Question 7

function of the anterior lumbar elements

Answer 7

• bear the compressive loads
• are larger caudally due to load increase above them
• why lumbar bodies are bigger

Question 8

function of the posterior lumbar elements

Answer 8

• function to guide movement

- help with facet joint orientation

Question 9

facet joints in the lumbar spine work to

Answer 9

restrict motion and function as muscle attachments

Question 10

T/F facet joints have highly innervated joint capsules

Answer 10

true-

have mechanoreceptors for proprioception and nociceptors for pain
why LBP is so present

Question 11

lumbar facet joint orientation

Answer 11

45 degrees off the frontal/coronal plane

Question 12

motion allowed at lumbar facet joints

Answer 12

• a lot of flexion/extension
• some lateral flexion
• minimal rotatoin

Question 13

why is there minimal rotation in the lumbar spine?

Answer 13

because of the orientation of the facet joints (they run into each other)

Question 14

why is the lumbo-sacral region different?

Answer 14

there is more of an oblique orientation there- more motion in the lower region