Ligamentous Support in Spinal Stability
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Questions and Answers

What is the primary location of the ligamentum nuchae?

  • Thoracic region
  • Cranial region
  • Cervical region (correct)
  • Lumbar region

What is the function of the interspinous ligaments?

  • Limits rotation
  • Limits lateral flexion
  • Limits extension
  • Limits forward flexion (correct)

What is the function of the alar ligaments?

  • Limits rotation of the head
  • Limits forward flexion
  • Resists anterior sliding of L5 and S1
  • Limits contralateral lateral flexion (correct)

What is the strongest region of the iliolumbar ligament?

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

What is the function of the zygapophyseal joint capsules?

<p>Resists forward flexion and axial rotation (A)</p> Signup and view all the answers

What is the function of the apophyseal joints?

<p>Guides intervertebral motion (B)</p> Signup and view all the answers

What is the function of the interbody joints?

<p>Connect an intervertebral disc with a pair of vertebral bodies (D)</p> Signup and view all the answers

What is osteokinematics?

<p>Movements of the spine as a whole (D)</p> Signup and view all the answers

What is the movement within any given intervertebral junction?

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

What happens when a ligament is ruptured or lax?

<p>It cannot adequately stabilize its associated intervertebral junction (A)</p> Signup and view all the answers

What is the function of the Anterior longitudinal ligament?

<p>Resists distraction, translation, and rotation of vertebral bodies (A)</p> Signup and view all the answers

What ligament limits forward flexion and reinforces the posterior portion of the anulus fibrosus?

<p>Posterior longitudinal ligament (D)</p> Signup and view all the answers

Where is the Ligamentum flavum well developed?

<p>In the cervical, lower thoracic, and lumbar regions (D)</p> Signup and view all the answers

What is the function of the Posterior atlantoaxial ligament?

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

Which ligaments are found in the Atlas (C1) and axis (C2)?

<p>Posterior atlantoaxial ligament and Supraspinous ligaments (D)</p> Signup and view all the answers

What is the region of the Supraspinous ligaments?

<p>Thoracic and lumbar regions (C7–L3 or L4) (B)</p> Signup and view all the answers

What is true about the Ligamentum flavum in the lumbar region?

<p>It is weaker in the lumbar region (B)</p> Signup and view all the answers

What is the shape of the Ligamentum flavum in the lumbar region?

<p>Thin, broad, and long (A)</p> Signup and view all the answers

What is the result of adding small movements across the entire vertebral column?

<p>Considerable angular rotation (C)</p> Signup and view all the answers

Which plane of movement is associated with forward and backward bending?

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

What type of movement occurs when a point on the anterior side of the vertebral body moves to the right or left?

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

What is the definition of joint approximation?

<p>Movement closer to the partner facet (C)</p> Signup and view all the answers

What is the term for the separation of joint surfaces?

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

What type of force causes sliding between joint surfaces?

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

What is an example of axial rotation in the vertebral column?

<p>Axial rotation between L1 and L2 (D)</p> Signup and view all the answers

What type of movement is characterized by secondary movements that consistently accompany a primary motion?

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

What is the term for the therapeutic application of a distraction force to decompress or separate apophyseal joints?

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

What is the kinematic phenomenon called when the vertebral column moves in one plane and automatically moves in another plane?

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

What do pure lateral flexion and pure rotation typically not occur in?

<p>Any region of the spine (B)</p> Signup and view all the answers

What is the association between lateral flexion and axial rotation in the middle and lower cervical spine?

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

During primary lateral bending, what type of rotation is observed in the thoracic spine?

<p>Ipsilateral axial rotation (A)</p> Signup and view all the answers

What is the term for the smallest functional unit in the spine?

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

What is the term for the type of rotation observed in the lumbar spine during primary lateral bending?

<p>Contralateral axial rotation (D)</p> Signup and view all the answers

What is the term for the phenomenon where a movement in one plane is associated with an automatic movement in another plane?

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

What type of movement is observed in the thoracic spine during primary axial rotation?

<p>Ipsilateral lateral bending (C)</p> Signup and view all the answers

What is the significance of the study on spinal coupling in the context of spine biomechanics?

<p>It provides insight into the complexity of spinal movements (A)</p> Signup and view all the answers

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