Axial Skeleton

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Biology 223 Human Anatomy and Physiology Week 3
Lecture 1 Wednesday Dr. Stuart S. Sumida
The Axial Skeleton
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Axial Skeleton Development of the skeleton
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• Structural features of the vertebrae
• Centrum
• Neural arch
• Transverse processes
• Spinous process
• Zygapophyses

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• Cervical verterbrae
• Transverse foramen
• Vertebral artery

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Atlas and Axis Vertebrae
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Thoracic vertebrae
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Lumbar vertebrae
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4 Distinct Curvatures of the Vertebral Column
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• Characteristic number of vertebrae in each region
• Segmental spinal nerves
• Number system for the spinal nerves
• (See pages 68-69 of your lab manual.)

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• Ribs Know
• Difference between "true ribs," "false ribs," and
  "floating ribs.
• Body or shaft
• Head of the rib
• Tubercle

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• Sternum
• Body
• Manubrium
• Xiphoid
• process

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• Functions of the Axial Skeleton
• Support
• Protection
• Respiration

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