How many coccygeal vertebrae are fused?

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Multiple Choice

How many coccygeal vertebrae are fused?

Explanation:
The coccyx, or tailbone, is formed by coccygeal vertebrae that fuse together as you mature. In an adult, the most common fusion results from four coccygeal vertebrae joining to make a single coccyx. There is natural variation, so some people may have three or five coccygeal vertebrae in that region, but four is the typical fused count. This fusion provides a stable final segment of the spine and gives attachment points for ligaments and muscles.

The coccyx, or tailbone, is formed by coccygeal vertebrae that fuse together as you mature. In an adult, the most common fusion results from four coccygeal vertebrae joining to make a single coccyx. There is natural variation, so some people may have three or five coccygeal vertebrae in that region, but four is the typical fused count. This fusion provides a stable final segment of the spine and gives attachment points for ligaments and muscles.

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