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Coccyx


 

The coccyx (Latin: os coccygis), commonly referred to as the tailbone, is the final segment of the human vertebral column, of three to five (usually four) fused vertebrae (the coccygeal vertebrae), below the sacrum. It is attached to the sacrum in a fibrocartilaginous joint, which permits limited movement between them.

Related Topics:
Vertebral column - Vertebra - Sacrum - Joint

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