Podcast
Questions and Answers
What is the primary function of the iliolumbar ligament?
What is the primary function of the iliolumbar ligament?
- To prevent the posterior slide of the L5 on the S1
- To prevent the anterior slide of the L5 on the S1 (correct)
- To connect the lumbar spine to the thoracic spine
- To stabilize the sacroiliac joint
What is the origin point of the iliolumbar ligament?
What is the origin point of the iliolumbar ligament?
- Transverse process of L3
- Sacrum
- Tips of the transverse process of L5 (correct)
- Spinous process of L4
What is the name of the ligament that arises from the lower margin of the transverse process of L5 vertebra and passes obliquely inferiorly to attach on the ala of the sacrum?
What is the name of the ligament that arises from the lower margin of the transverse process of L5 vertebra and passes obliquely inferiorly to attach on the ala of the sacrum?
- Supraspinous ligament
- Ligamentum flavum
- Anterior longitudinal ligament
- Lateral lumbosacral ligament (correct)
What is the name of the layer of the thoracolumbar fascia that is large, thick, and fibrous?
What is the name of the layer of the thoracolumbar fascia that is large, thick, and fibrous?
What is the insertion point of the iliolumbar ligament?
What is the insertion point of the iliolumbar ligament?
What is the name of the ligament that is partially continuous with the iliolumbar ligament at its origin point?
What is the name of the ligament that is partially continuous with the iliolumbar ligament at its origin point?
How many primary bands does the iliolumbar ligament have?
How many primary bands does the iliolumbar ligament have?
What is the caudal direction of the posterior layer of the thoracolumbar fascia?
What is the caudal direction of the posterior layer of the thoracolumbar fascia?
What happens to the inferior facet during spinal extension?
What happens to the inferior facet during spinal extension?
What occurs to the nucleus pulposus during spinal extension?
What occurs to the nucleus pulposus during spinal extension?
What is the result of lumbar hyperextension on the facet joints?
What is the result of lumbar hyperextension on the facet joints?
What happens to the intervertebral foramen size during spinal extension?
What happens to the intervertebral foramen size during spinal extension?
What is the result of spinal flexion on the compression forces between vertebrae?
What is the result of spinal flexion on the compression forces between vertebrae?
What is the role of the compressed anterior aspects of the discs during spinal flexion?
What is the role of the compressed anterior aspects of the discs during spinal flexion?
What is the result of spinal extension on the contact pressure within the apophyseal joints?
What is the result of spinal extension on the contact pressure within the apophyseal joints?
What is the typical percentage of the total spinal load supported by the apophyseal joints in erect standing?
What is the typical percentage of the total spinal load supported by the apophyseal joints in erect standing?
What can a chronic posture of lumbar hyperlordosis place on the apophyseal joints and adjacent regions?
What can a chronic posture of lumbar hyperlordosis place on the apophyseal joints and adjacent regions?
What happens to the interspinous ligaments when the lumbar spine is hyperextended?
What happens to the interspinous ligaments when the lumbar spine is hyperextended?
How many degrees of lateral flexion can occur in the lumbar region?
How many degrees of lateral flexion can occur in the lumbar region?
What happens to the nucleus pulposus during lateral flexion?
What happens to the nucleus pulposus during lateral flexion?
What happens to the contralateral inferior articular facet during axial rotation?
What happens to the contralateral inferior articular facet during axial rotation?
What is restricted by the strong sagittal plane orientation of the lumbar apophyseal joints?
What is restricted by the strong sagittal plane orientation of the lumbar apophyseal joints?
What restricts axial rotation within the lumbar region?
What restricts axial rotation within the lumbar region?
What is the direction of rotation based on?
What is the direction of rotation based on?
What is the primary function of the lumbar region in the vertebral column?
What is the primary function of the lumbar region in the vertebral column?
Which muscles contribute to vertical stability in the lumbar region?
Which muscles contribute to vertical stability in the lumbar region?
What is the term used to describe the kinematic relationship between the lumbar spine and hip joints during sagittal plane movements?
What is the term used to describe the kinematic relationship between the lumbar spine and hip joints during sagittal plane movements?
In a normal kinematic strategy, what is the approximate degree of flexion of the lumbar spine during trunk flexion?
In a normal kinematic strategy, what is the approximate degree of flexion of the lumbar spine during trunk flexion?
What is the consequence of limited flexion in the hips during trunk flexion?
What is the consequence of limited flexion in the hips during trunk flexion?
What is the primary muscle group activated during the early phase of trunk extension?
What is the primary muscle group activated during the early phase of trunk extension?
What is the characteristic of the middle phase of trunk extension?
What is the characteristic of the middle phase of trunk extension?
What is the result of limited lumbar mobility during trunk flexion?
What is the result of limited lumbar mobility during trunk flexion?
What happens to the lumbar spine when the pelvis undergoes anterior tilt?
What happens to the lumbar spine when the pelvis undergoes anterior tilt?
What is the effect of anterior pelvic tilt on the nucleus pulposus?
What is the effect of anterior pelvic tilt on the nucleus pulposus?
What occurs to the diameter of the intervertebral foramen when the pelvis undergoes anterior tilt?
What occurs to the diameter of the intervertebral foramen when the pelvis undergoes anterior tilt?
When does muscle activity typically cease in the lumbar spine?
When does muscle activity typically cease in the lumbar spine?
What is the effect of posterior pelvic tilt on the lumbar spine?
What is the effect of posterior pelvic tilt on the lumbar spine?
What is the effect of posterior pelvic tilt on the nucleus pulposus?
What is the effect of posterior pelvic tilt on the nucleus pulposus?
What occurs to the diameter of the intervertebral foramen when the pelvis undergoes posterior tilt?
What occurs to the diameter of the intervertebral foramen when the pelvis undergoes posterior tilt?
What is represented by the solid black line in the diagram?
What is represented by the solid black line in the diagram?
What is the color used to represent the intensity of muscle activation in the diagram?
What is the color used to represent the intensity of muscle activation in the diagram?
What is the relationship between the intensity of muscle activation and the color used in the diagram?
What is the relationship between the intensity of muscle activation and the color used in the diagram?
