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There are five lumbar vertebrae located in the lower back. These vertebrae receive the most stress and are the weight-bearing portion of the back. The lumbar vertebrae allow movements such as flexion and extension, and some lateral flexion.

Thoracic vertebra

Final Answer: lumbar vertebra

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13y ago
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14y ago

Lumbar vertebrae have circular body and can bear a lot of weight.
Spinous process of lumbar vertebrae is blunt.
Body of lumbar vertebra is thicker compared to cervical and thoracic vertebrae.

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14y ago

The five lumbar vertebrae support the most weight.

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11y ago

Thoracic Vertebrae

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Q: What massive vertebra is weight-sustaining?
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