Muscles
The muscles that make up the inner unit
What is transverse abdominis, multifidus, pelvic floor and diaphragm
In the lumbar spine, the vertebral body tilts and slides anterior and the inferior facets slide ____ during lumbar flexion
What is superior?
The region of the spine with the largest intervertebral discs
What is the lumbar spine?
The anterior longitudinal ligament (ALL) is very _____ and the posterior longitudinal ligament (PLL) is very ____ in the lumbar spine
What is strong and weak?
The nerve that innervates the multifidus, rotatores, interspinales, intertransversarii and erector spinae
What is the Spinal nerve?
The orientation of the facets in the lumbar spine
What is anterior aspect in frontal plane (resists anterior shear) and posterior aspect (resists rotation) in sagittal plane
The name of the structure in the image
What is intervertebral endplate?
The iliolumbar ligaments span
What is the transverse processes to iliac crest (w/ connections to QL and SI ligaments)
The muscles that extend the trunk and cause ipsilateral lateral flexion
What is longissimus, iliocostalis and spinalis?
In the lumbar spine, the vertebral body tilts and slides ipsilateral, the ipsilateral facet slides ____ and the contralateral facet slides _____ during lateral flexion
What is inferior; superior?
Injury to the outer annulus may result in ____ pain; injury to the inner annulus may result in ____ pain
What is diffuse; local pain?
The primary role of the iliolumbar ligaments
What is stabilizing L5? (prevents anterior translation of L5 & resists motion of L5 on S1 in all directions)
The insertion of the multifidus
What is the spinous processes of lumbar through cervical vertebrae spanning 2-4 vertebrae
What is happening at the level of the inferior facets during the movement in the image?
What is inferior slide of the inferior facets?
The role of the concentric lamellae that make up the annulus fibrosus in the intervertebral discs?
What is better ability to resist forces in all directions?
The role of the ligamentum flavum in stabilizing the spine
What is the ligamentum flavum is always under tension allowing for preloading of vertebral segments helping resist shearing or instability of that segment?
The muscle in the image (#18- refer to powerpoint)
What is external intercostals?
In the lumbar region, the superior facets of the articular processes are oriented _____ and the inferior facets of the articular processes are oriented _____
What is posterior & medial; anterior & lateral
The innervation of the intervertebral discs in the lumbar spine
What is the sinuvertebral nerve?
The ligament pictured with a question mark and when is it stretched?
What is anterior longitudinal ligament (ALL) which is stretched in extension?