The Axial Skeleton The Vertebral Column

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The Axial SkeletonThe Vertebral Column

• Human Bio 11

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Vertebral Column

• AKA spine or backbone.
• Bone type
• Irregular
• 26
• Function
• Posture
• Attachment for many muscles
• Protects spinal cord.

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Vertebral Column

• The way our spine is made limits how much we can
  bend forward and backward.
• Some people are more flexible than others.

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Vertebrae

• One round drum shaped body with three wing-like
  projections.
• Held together by bands of ligaments.
• Between each body is an intervertebral disc.
• Hole in the middle of each vertebra for the
  spinal cord.

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Vertebrae
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Vertebral Column

• Divided into regions
• Cervical Region
• C1 to C7.
• Supports the head and neck.
• Thoracic Region
• T1 to T12.
• Rigid.
• Support the ribs.

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Vertebral Column

• Lumbar Region
• L1 to L5.
• Largest bones of the spine.
• Carries most of the body mass.
• Very mobile.
• Sacrum
• Transfers body weight to the pelvis.
• Coccyx
• No significant function.

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