ANLS 1615 Disc Presentation Powerpoint

ANLS 1615 Disc Presentation Powerpoint - Spinal...

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Spinal Biomechanics CPAP 1225 CPAP 1225 Welcome! Dr. Ron Kirk, instructor
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Introduction This course will cover topics related to the biomechanics and neuromuscular aspects of the spine as it relates to Full Spine Technique
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Contact Office hours for Dr. Kirk are posted at Chiropractic Sciences Office Office located in Chiropractic Sciences Office Annex C Phone is 770 426-2704
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The power that made the body can heal the body and this power can be interfered with by a vertebral subluxation. I, as a chiropractor, can locate and reduce the vertebral subluxation, thereby allowing the imprisoned impulse to be released and heal the physical body.
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CPAP 1225 Intervertebral disc
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Lumbar vertebra
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Functional components of a lumbar vertebra The division of a lumbar vertebra into its three functional components
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Ligaments of the spine Besides the disc, there are seven ligaments that connect one vertebra to the next. Contribution to the spine stability by an individual ligament is dependent upon its axis of rotation and its orientation in space. The anatomy of the ligaments is such as to collectively provide stability to the spine in its various physiological motions.
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The vertebral bodies rest directly on one another Adding a curvature to the bottom of a vertebra allows rocking movements to occur Interposing soft tissue between the vertebral bodies separates them and allows rocking movements to occur. Possible designs of an inter-body joint
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The disc consists of a nucleus pulposus (NP) surrounded by an anulus fibrosus (AF), both sandwiched between two cartilaginous vertebral end plates (VEP). The basic structure of a lumbar disc.
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The collagen fibres of the inner two-thirds of the anulus fibrosus sweep around into the vertebral end-plate, forming its fibrocartilaginous component. Detailed structure of the vertebral end-plate. The peripheral fibres of the anulus are anchored into the bone of the ring apophysis.
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The detailed structure of the anulus fibrosis. Collagen fibres are arranged in 10-20 concentric, circumferential lamellae. The orientation of fibres alternates in successive lamellae but their orientation with respect to the vertical is always the same, and measures 65°.
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The appearance of incomplete lamellae. At “ a ”, two subconsecutive lamellae fuse around the terminal end of an incomplete lamella, At “ b ”, two subconsecutive lamellae become apposed, without fusing, around the end of another incomplete lamella. The disc is 50% incomplete at the posterolateral
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Lumbar vertebra
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Intervertebral disc A photograph of the disc clearly shows their annular fibers and their orientation
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compression 1 Pressure within the nucleus is produced because of compression This pressure pushes the disc annulus and the two end plates outward. The disc bulges out in the horizontal plane, and the end-plates deflect
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ANLS 1615 Disc Presentation Powerpoint - Spinal...

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