PHTY101 Lecture Notes - Lecture 5: Intervertebral Disc, Shock Absorber, Vertebra
Document Summary
Short & thin lateral side of body & pedicle. Articular facets on sides of body for articulation with heads of ribs. Iv disc: functions, cartilage and plate: transmits weight to adjacent vertebral body, annulus fibrosis: allow and limit movement, nucleus pulposus: shock absorber. Articular surfaces: superior and inferior articular facets. Anterior longitudinal ligament: c1 to sacrum attaching to anterior surfaces of vertebral bodies and discs, limits extension. Posterior longitudinal ligament: c2 to sacrum attaching to posterior surfaces of margins of vertebral bodies and discs, limits flexion. Ligamentum flavum: connects laminar of adjacent vertebrae, functions, brake flexion, protect z joint capsules, protect neural tissue. Supraspinous ligament: connects spinous processes from c7 to sacrum, limits flexion. Interspinous ligament: connect spinous processes of adjacent vertebrae, limits flexion. Intertransverse ligament: connect transverse processes of adjacent vertebrae, limits lateral flexion. Ligaments: anterior and posterior atlanto-occipital membranes- limit all movements. Lateral atlanto-axial joints: synovial, multiaxial, plane.
