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Agenda:. Bones of the Axial Skeleton Continued. Vertebral Column. Double curvature of the spine - adaptation for upright posture. C1 = atlas C2 = axis C1 – C7 = cervical vertebrae T1 – T12 = thoracic vertebrae L1 – L5 = lumbar vertebrae. Page 219 – Draw and label a vertebra.
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Agenda: • Bones of the Axial Skeleton Continued
Vertebral Column Double curvature of the spine - adaptation for upright posture C1 = atlas C2 = axis C1 – C7 = cervical vertebrae T1 – T12 = thoracic vertebrae L1 – L5 = lumbar vertebrae
Please know: • Superior articular process • Inferior articular process • Vertebral body • Spinous process • Transverse process
How to distinguish between vertebrae types Cervical Thoracic Lumbar smaller, more larger, U body,largest, doesflexible, bifid shape, rigid, not articulateprocess, narrow articulates with with ribs, largenerve passage, the ribs, medium nerve passage,no rib articulation, nerve passage circular body oval body shape shape (oval)
Thoracic Cage True ribs (pairs 1 – 7) False ribs (pairs 8 – 12) Floating ribs (pairs 11 – 12) Parts of Sternum: • Manubrium • Body • Xiphoid Process