The sacrum consists of how many fused vertebrae?

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Multiple Choice

The sacrum consists of how many fused vertebrae?

Explanation:
The sacrum is formed by multiple vertebrae that fuse into one bone during development. Specifically, five vertebrae (S1–S5) fuse together to become a single sacral bone. This fusion creates a strong, stable foundation that transmits body weight from the spine to the pelvis, which is why the five fused vertebrae count is the standard anatomy.

The sacrum is formed by multiple vertebrae that fuse into one bone during development. Specifically, five vertebrae (S1–S5) fuse together to become a single sacral bone. This fusion creates a strong, stable foundation that transmits body weight from the spine to the pelvis, which is why the five fused vertebrae count is the standard anatomy.

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