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Axial Skeleton Skull, Thoracic, Vertebral Column The Axial Skeleton – the vertebral column. 7 Cervical Vertebra 12 Thoracic Vertebrae What are the names of the 5 groups of vertebrae and how many are in each group? Cervical Thoracic Lumbar C1-C7 T1-T12 L1-L5 5 sacral 4 Coccyx Stand up! SPINAL CURVATURE Identify the different parts of the vertebrae Spinous process Transverse process Vertebral foramen Body Vertebral disks are found between the body portions of individual vertebrae – this video shows a herniated disc. VIDEO Atlas (C1) – Superior view Axis (C2) – superior view Cervical vertebrae Smallest, lightest, vertebral foramen is traingular, spinous process is short and bifurcated. Turn to your neighbor and ask if you may feel their C7. Visible through the skin Thoracic vertebrae •Larger body than cervical vertebrae •Costal facets articulate with ribs •Vertebral foramen are round Lumbar vertebrae •Largest and strongest body. •Spinous process is hatchet shaped •Spinal cord ends at L2 The sacrum Formed from 5 fused vertebrae Sacral canal Body Superior articular process Ala Body of first sacral vertebrae Median Sacral crest Transverse ridges Lateral Sacral crest Anterior Sacral Posterior foramina Sacral foramina Apex Sacral hiatus Coccyx WHAT KIND OF VERTEBRAE IS THIS? Ribcage/Thoracic cage Costal = Ribs Sternal Angle True ribs attach directly to the sternum by their own cartilage False ribs either attach in directly to the sternum or not at all. The ribs
