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
Cervical facets limit?
Rotation and side bending
Lumbar facets limit ?
Rotation and lateral Flexion
Flexion of the spine (5)
Anterior glide/ tilt Foramen increase Spinous process seperate Anterior annulus compressed Posterior annulus stretched
Extension of the spine (4)
Posterior tilting/gliding
Foramen narrow
Anterior annulus stretches
Posterior annulus compresses
Lateral Flexion (5)
Laterally tilts/rotates/translates Foramen narrow on ipsilateral side Foramen widen on contralateral side Annulus compressed in concave side Annulus stretched on convex side
Which side is intertransverse lig taught with left lateral Flexion/rotation?
Right
Taught on convex side
