Intervertebral Disc Structures Quiz
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Questions and Answers

What is the most common location for horizontal splits and clefts in intervertebral disc structures?

  • Anterior half of the disc
  • Lateral half of the disc
  • Posterior half of the disc (correct)
  • Central part of the disc
  • Which type of tear is caused by a progressive extension of cleft and split from nucleus pulposus to annulus in a posterior direction?

  • Circumferential tear
  • Longitudinal tear
  • Radial tear (correct)
  • Transverse tear
  • Why is the healing response to strain and sprain limited in the inner portion of the intervertebral disc?

  • Due to excessive blood supply in that region
  • Because of the high density of nerve endings in that area
  • Because it has a thicker annulus fibrosus layer
  • Because the inner portion relies on diffusion for nutritional supply (correct)
  • What is the clinical significance of lumbar disc herniation compared to other types of disc protrusions?

    <p>It causes more chronic pain conditions</p> Signup and view all the answers

    Which region is more prone to develop three types of rupture or tear in the annulus fibrosus?

    <p>Posterior or posterolateral direction</p> Signup and view all the answers

    What type of tears occur between the annulus layers called 'lamellae'?

    <p>Circumferential tears</p> Signup and view all the answers

    What is the purpose of physiotherapy and manual therapy in the conservative management of discogenic pain?

    <p>To improve joint mobility and reduce pain</p> Signup and view all the answers

    Which type of vertebral endplate lesion is characterized by a defect in the center of the endplate?

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

    What is the potential consequence of fracture and erosion types of endplate lesions?

    <p>Nociceptive pain from Basivertebral and Sinuvertebral nerves</p> Signup and view all the answers

    Which of the following is NOT mentioned as a potential comorbid condition associated with disc and endplate lesions?

    <p>Rheumatoid arthritis</p> Signup and view all the answers

    What is the purpose of McKenzie extension exercises in the conservative management of discogenic pain?

    <p>To strengthen the core muscles and improve stability</p> Signup and view all the answers

    Which of the following is NOT mentioned as a conservative management approach for discogenic pain?

    <p>Spinal cord electrical stimulation implants</p> Signup and view all the answers

    What is the direct implication of understanding the stages and levels of disc degeneration?

    <p>It helps determine the appropriate load management-based physiotherapy treatment and interventions to improve spinal segment mobility and stability.</p> Signup and view all the answers

    What is the primary concern associated with lumbar disc bulge and herniation?

    <p>Potential compression of nerve roots and branches, leading to various symptoms.</p> Signup and view all the answers

    Which of the following is NOT a potential symptom associated with radiculopathy caused by discogenic pain?

    <p>Increased muscle tone.</p> Signup and view all the answers

    What is considered a medical emergency associated with severe disc lesions and comorbid pathologies?

    <p>All of the above.</p> Signup and view all the answers

    Which part of the vertebra-disc complex is considered the weakest and most susceptible to age-related degeneration?

    <p>The vertebral endplate.</p> Signup and view all the answers

    What is the primary concern associated with vertebral endplate lesions?

    <p>Potential irritation of nociceptive nerve endings in the vertebral endplate and body.</p> Signup and view all the answers

    What is a Schmorl's node?

    <p>A type of vertebral endplate lesion where the disc tissue protrudes into the vertebral marrow.</p> Signup and view all the answers

    What is a Modic lesion?

    <p>A direct lesion of the vertebral endplate and its adjacent trabecular bone of the vertebral body.</p> Signup and view all the answers

    Where are erosion and calcification/sclerotic types of Modic lesions often found?

    <p>In the peripheral rim portion of the vertebral endplate.</p> Signup and view all the answers

    What is the primary purpose of using imaging investigations in the context of endplate lesions?

    <p>To identify the types and patterns of endplate lesions.</p> Signup and view all the answers

    What is the main difference between a disc bulge and a disc herniation?

    <p>In a disc bulge, the nucleus pulposus is contained within the annulus, while in a herniation, it is displaced through a tear in the annulus.</p> Signup and view all the answers

    Which of the following is considered an intrinsic source of back pain?

    <p>Annulus fibrosus tear</p> Signup and view all the answers

    What is the proposed mechanism for the reduction of pain through lumbar extension exercises and mobilization?

    <p>It alters the fluid distribution and reduces pressure in the posterior disc region.</p> Signup and view all the answers

    What is the primary difference between segmental instability and segmental stiffness in relation to disc degeneration?

    <p>Segmental instability is associated with early stages of disc degeneration, while segmental stiffness is associated with later stages.</p> Signup and view all the answers

    What is the proposed mechanism for the development of discogenic pain?

    <p>Inflammation and chemical disturbances caused by the displaced disc materials.</p> Signup and view all the answers

    Which statement is true regarding the differences in disc composition between young and older adults?

    <p>The nucleus pulposus is more hydrated or gelatinous in young people compared to older adults.</p> Signup and view all the answers

    Which of the following is NOT a proposed mechanism for the reduction of pain in cases of disc bulge or herniation?

    <p>Anti-inflammatory medication</p> Signup and view all the answers

    What is the proposed mechanism for the development of segmental instability and segmental stiffness in cases of disc degeneration?

    <p>Segmental instability and stiffness are caused by the altered load-bearing ability of the spinal segment due to reduced disc height and increased intradiscal pressure.</p> Signup and view all the answers

    Which of the following statements is NOT true regarding the clinical presentations of discogenic pain?

    <p>Discogenic pain is always accompanied by radiating leg pain (radiculopathy).</p> Signup and view all the answers

    What is the proposed mechanism for the development of edema and increased disc pressure in cases of disc degeneration?

    <p>Mechanical disruption of the disc tissue leads to inflammation and edema, which further increases disc pressure.</p> Signup and view all the answers

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