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</p> Signup and view all the answers

    What position represents the closed pack position for the SIJ?

    <p>Nutation</p> Signup and view all the answers

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

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

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

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

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

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

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

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

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

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

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

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

    What mechanisms enable the pelvis to maintain stability?

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

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

    <p>Hamstrings</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</p> Signup and view all the answers

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

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

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

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

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

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

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

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

    What is a common characteristic of mechanical low back pain?

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

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