Vertebrae of Which Regions are Fused in the Adult

Question

Vertebrae of which regions are fused in the adult?
A) lumbar region
B) sacral region
C) coccygeal region
D) thoracic
E) sacral and coccygeal regions

Accepted Answer

In adults, the vertebrae of the sacral and coccygeal regions are fused to form the sacrum and the coccyx, respectively. This fusion provides stability to the pelvis and the vertebral column.