CHP8 The Skeletal System

vertebrae intervertebral discs gelatinous pad

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Unformatted text preview: bral foramen vertebral • Body= spongy bone/red marrow, thin layer of compact bone • Weight-bearing portion of spine • Rough surfaces for attachment of intervertebral disc • Spinous & transverse processes= pts of muscle attachment Spinous pts • Series of vertebral foramen form the vertebral canal Series vertebral To restrict twisting of sp.column~ • Superior articular processes project upward, joins inferior articular processes projecting inferior downwards from above vertebra downwards Vertebrae Structure (cont.) Vertebrae Intervertebral discs= gelatinous pad surrounded w/ a gelatinous fibrocartilage ring fibrocartilage • Bind adjacent vert’s, support body weight, absorb shock • Expand/bulge laterally to absorb stress…herniated disc Intervertebral foramen= open space for passage of spinal open nerves formed by adjacent vertebrae nerves • Space created by superior & inferior surfaces Space of pedicles (of transverse processes) pedicles Cervical vertebrae Cervical Cervical (C1-C7)= smallest, lightest vert’s; ‘neck region’ • Atlas= C1, supports head & articulates w/ occipital condyles • No body; superior articular facet art’s w/ occipital, inferior a.f. w/ No axis axis • Allows to move head up/down (‘yes’) • Axis= C2, allows to move head left/right (‘no’) • Body present but differs from other vert’s; dens (odontoid Body dens process) a prominent knob unique to C2 for attachment of transverse ligament transverse •...
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This note was uploaded on 01/12/2014 for the course ZOO 250 taught by Professor Staff during the Fall '08 term at S.E. Louisiana.

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