Spine Flashcards
What consists of the neural arch?
Pedicles Laminae Articular processes Spinous process Transverse process
Roof of neural arch?
Laminae
Pars interarticularis?
Between superior/ inferior Articular processes
How forces are transmitted from posterior elements to Pedicle to body
Type of collagen for nucleus pulposus?
Type II resist compression
Mostly water
Where does nucleus pulposus distribute its weight?
Entire disc
Cartilaginous end plate in intervertebral disc?
Strongly attached to annulus
Hylian cartilage close to vertebral body
Firbocartilage close to disc
Type of collagen for annulus fibrosus ?
Type I
Resists tensile forces
Lowest fluid in outer ring
6 degrees of freedom?
Gliding Distraction/compression AP translation Lateral tilting Rotation AP tilting
Anulus fibrosis resists?
Distraction
Translation
Rotation
Tectorial membrane limits?
Flexion
Ligament flavum limits?
Flexion
Supraspinous ligmanet limits?
Flexion
Ligamentum nuchae limits?
Flexion
Interspinous lig limits?
Flexion
Alar ligament limits?
Ipsilateral rotation
Contralateral Flexion