Oren Barkan
What type of bone are vertebrae?
Irregular
How much water is the annulus fibrosis made of?
60-70%
What is the connection between the superior and inferior articular processes called?
What is the origin of the rectus abdominis?
Pubic crest and symphysis
If you find that the ASIS appears low and the PSIS appears high, what is that called?
Anterior innominate rotation
What kind of bone is the peripheral portion of vertebral bodies?
Cortical bone
What is the parenchyma?
The functional tissue of an organ (axon) as distinguished from the connective and supporting tissue
What type of muscles are located close to the axis of rotation?
Local muscles
What is included in the posterior oblique sling?
Latissimus dorsi, thoracolumbar fascia, gluteus maximus
How does the sacrum move in nutation?
Base moves anterior and inferior, apex moves posterior and superior
Iliac crests move medially, ischial tuberosities move lateral
What is the main function of the anterior column?
Bear weight
What innervates the annulus fibrosis posteriorly?
Sinuvertebral nerve
What makes up the inner unit?
What action does the anterior oblique sling help produce?
Throwing/striking
What is the deepest ligament in the sacroiliac joint?
Interosseous ligament
What is the lumbar zygapophyseal joint capsule reinforced by dorsally?
Deep fibers of multifidus
What is extrusion?
Annular fibers are disrupted and nucleus pulposus comes out
The path of instantaneous axis of rotation shifts when which vertebrae rotates?
Superior
What are the components of the deep longitudinal sling?
Fibularis longus, biceps femoris, sacrotuberous ligament, deep lamina of thoracodorsal fascia and erector spinae
Where is the pelvic inlet located?
Promontory of the sacrum to the superior margin of the pubis
What is a type 2 mechanical lesion?
When the zygapophyseal joint gets 'stuck' open or closed
If there is pain with lateral flexion AWAY from radicular pain side, where did the nucleus pulposus herniate?
Medial to the nerve root
What does normal intervertebral motion include?
Anterior rotation and anterior translation
What does the linea terminalis consist of?
Pectineal line (pecten pubis), arcuate line, pubic crest, sacral ala, sacral promontory