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General Structure of Vertebrae. Body Spinous process Transverse process Vertebral foramen Superior Articular process Inferior articular process Intervertebral foramen Vertebral notch. Figure 7.15. General Structure of Vertebrae. Figure 7.15. Cervical Vertebrae. Atlas Axis with dens
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General Structure of Vertebrae • Body • Spinous process • Transverse process • Vertebral foramen • Superior Articular process • Inferior articular process • Intervertebral foramen • Vertebral notch Figure 7.15
General Structure of Vertebrae Figure 7.15
Cervical Vertebrae • Atlas • Axis with dens • Transverse foramina Table 7.3a
Cervical Vertebrae Table 7.3a
Cervical Vertebrae Figure 7.17a
The Atlas Figure 7.16a
The Atlas Figure 7.16b
The Axis Figure 7.16c
Thoracic Vertebrae 1. Articular facet for rib (on transverse process) Table 7.3b
Thoracic Vertebrae Table 7.3b
Lumbar Vertebrae 1. Large body; very thick! Table 7.3c
Lumbar Vertebrae Figure 7.17c
Lumbar Vertebrae Table 7.3c
Sacrum and Coccyx SACRUM 1. Five fused vertebral portions COCCYX 1. Three to five fused vertebrae Figure 7.18a, b
Sacrum Figure 7.18a, b
Curvatures of The Vertebral Column Figure 7.13
Regions and Normal Curvatures • Vertebral column is about 70 cm (28 inches) • Vertebral column is divided into five major regions • Cervical vertebrae – 7 vertebrae of the neck region • Thoracic vertebrae – 12 vertebrae of the thoracic region • Lumbar vertebrae – 5 vertebrae of the lower back • Sacrum – inferior to lumbar vertebrae – articulates with coxal bones • Coccyx – most inferior region of the vertebral column
Regions and Normal Curvatures • Four distinct curvatures give vertebral column an S-shape • Cervical and lumbar curvatures– concave posteriorly (secondary curves) • Thoracic and sacral curvatures – convex posteriorly (primary curves) • Curvatures increase the resilience of the spine
Ribs: True, False, and Floating Figure 7.19a
Ribs • Head • Neck • Tubercle • Superior margin • Inferior margin Figure 7.20a
Sternum • Manubrium • Body • Xiphoid process • Costal cartilage Figure 7.19a
Sternum Figure 7.19a
How CPR compresses the heart between vertebrae and sternum Figure 7.19b