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Lumbar&thoracic
Question | Answer |
---|---|
lordosis | increased posterior concavity of lumbar and cervical spine |
kyphosis | increased anterior concavity of thoracis spine |
lumbar kyphosis | reduction of normal lordotic curve, resulting in a flat-back appearance |
scoliosis | lateral curvatures or sideways deviation |
prescence of lumbar shift | named by the shoulder |
scoliosis naming | named by the most convex curve |
ligamentzs | anterior long(ALL), Posterior long(PLL), supraspinous, ligamentum flavum, interspinous, intertransverse |
Anterior longitudinal ligament | from atlas to sacrum, narrow in cspine, broader in lumbar spine, attached to vertebral body and disk but not boney rim of vertebrae, restricts hyper extension |
Posterior longitudinal ligament | from axis to sacrum, broad in cpsine, narrow in lumbar, attached to disc and vertebral rim but not the body, |
interspinous ligament | runs from spinous process to spinous process, elastic in the lumbar spine, frequent absent or ruptured in lumbar spine, prevents hyperflex |
supraspinous ligament | runs from ligamentum of nuchae to L4, spinous process to spinous process, prevents hyper flex |
Ligamentum Flavum | yellow and elastic, series of short ligaments from outside one lamina to the inside of the one above it, bends w/ facet capsule and helps prevent pinching of the synovial plica(fat pad) |
Intertransverse ligament | well developed in the lumbar spine, restricts side bending, from transverse process to transverse process |
Joints | minimal motion b/w & 2 vertebrae(except altantoaxial)-cummlative movement from multiple vertebrae allow for substantial motion, arthrodial, gliding type joint due tolimited gliding movments, gliding b/w superior&inferiorarticular processes of facet joitns |