Pelvic Motion Anatomy and Stability Quiz

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Questions and Answers

Where is the most common site for problems related to bearing more weight than other vertebral levels?

  • L3-L4
  • L4-L5
  • L5-S1 (correct)
  • Lumbar region

Which vertebral level has an angle greater than others, making it at a greater risk of stress?

  • L5-S1 (correct)
  • L3-L4
  • S1-S2
  • L4-L5

What is the function of the pelvic ring in transferring forces from the spine to the lower extremities?

  • Supporting the thoracic spine
  • Stabilizing the lumbar region
  • Acting as a buffer to decrease forces to the upper body (correct)
  • Transferring forces through the upper extremities

What type of joint is the SIJ, being slightly movable at approximately 4-7 degrees?

<p>Synovial joint (C)</p> Signup and view all the answers

What position represents the closed pack position for the SIJ?

<p>Nutation (C)</p> Signup and view all the answers

What is the dominant pattern of leg pain according to the text?

<p>Neurogenic intermittent claudication (A)</p> Signup and view all the answers

In low back pain, what does the centralization of pain refer to?

<p>Retreat of pain towards the midline of the spine (D)</p> Signup and view all the answers

What does relief with extension indicate in cases of back pain?

<p>Pressure relief through gapping (A)</p> Signup and view all the answers

What does 'Central stenosis' cause according to the text?

<p>SI joint pain (D)</p> Signup and view all the answers

Which action would be typical for someone experiencing Gower’s sign?

<p>Pushing up from thighs/surfaces (C)</p> Signup and view all the answers

What is the goal in cases of non-specific low back pain according to the text?

<p>'Centralization' of pain (C)</p> Signup and view all the answers

Which muscle is primarily responsible for causing a posterior tilt of the pelvis?

<p>Rectus abdominis (B)</p> Signup and view all the answers

In the context of pelvic stability, what role do ligaments play?

<p>Act as passive restraints (B)</p> Signup and view all the answers

What mechanisms enable the pelvis to maintain stability?

<p>Form and force closure (A)</p> Signup and view all the answers

Which muscle group/system helps actively stabilize the pelvic joints during gait?

<p>Hamstrings (A)</p> Signup and view all the answers

What happens to the lumbar vertebrae during lateral flexion (side bend) to the ipsilateral side?

<p>Inferior facets move inferiorly and posteriorly (A)</p> Signup and view all the answers

What restricts the movement of the lumbar spinous processes (SPs) during extension and inflection?

<p>Facet capsules (A)</p> Signup and view all the answers

What is the main function of the lumbar spine anatomy discussed in the text?

<p>Supporting the upper body (D)</p> Signup and view all the answers

Which structure in the lumbar spine anatomy carries the majority of the load?

<p>Facet joints (A)</p> Signup and view all the answers

What is the main function of the ligamentum flavum in the lumbar spine anatomy?

<p>Controlling extension movements (C)</p> Signup and view all the answers

How does the orientation of facet joints change in the lumbar spine anatomy?

<p>From sagittal to frontal plane (A)</p> Signup and view all the answers

What is the function of the annulus fibrosis in the lumbar disc anatomy?

<p>Absorb shock (A)</p> Signup and view all the answers

How is nutrition received by the lumbar disc in the vertebral body?

<p>By diffusion through endplate (D)</p> Signup and view all the answers

What is a common characteristic of mechanical low back pain?

<p>Pain is relieved by extension movements (C)</p> Signup and view all the answers

Which condition is often associated with neurogenic pain in the context of low back pain?

<p>Inflammatory joint condition (C)</p> Signup and view all the answers

What is a characteristic feature of idiopathic low back pain?

<p>May involve nonspecific causes like ligamentous involvement (C)</p> Signup and view all the answers

Which activity is typically easier for individuals with low back pain due to compression of nerve roots?

<p>Flexing the spine (B)</p> Signup and view all the answers

What distinguishes mechanical low back pain from other types of low back pain?

<p>Pain is relieved by changing positions (D)</p> Signup and view all the answers

Which condition is likely to be associated with mechanical low back pain that refers pain to the buttocks and thighs?

<p>Spondylolisthesis (D)</p> Signup and view all the answers

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