How many lumbar vertebrae are listed?

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Multiple Choice

How many lumbar vertebrae are listed?

Explanation:
The lumbar region of the spine is defined as the lower back portion and, in standard anatomy, it contains five vertebrae. These are the bones labeled L1 through L5, the largest in the spine because they bear the most body weight and provide stability for lifting and walking. Because of that conventional arrangement, the typical listing shows five lumbar vertebrae. There can be rare variations—some people may have an extra lumbar vertebra or a sacralization of L5—but those are exceptions. So counts of four or six or seven do not reflect the usual anatomy.

The lumbar region of the spine is defined as the lower back portion and, in standard anatomy, it contains five vertebrae. These are the bones labeled L1 through L5, the largest in the spine because they bear the most body weight and provide stability for lifting and walking. Because of that conventional arrangement, the typical listing shows five lumbar vertebrae. There can be rare variations—some people may have an extra lumbar vertebra or a sacralization of L5—but those are exceptions. So counts of four or six or seven do not reflect the usual anatomy.

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