Question

Some vertebrae of birds are fused to form

• A. Sacrum
• B. Synsacrum
• C. Coccyx
• D. None of the above

Answer 1

The correct option is B Synsacrum

The synsacrum is a skeletal structure found in birds. It is basically a sacrum fused with many other vertebrae. These fused vertebrae could either be caudal or lumbar vertebrae. It is assumed to be present in some extinct reptiles like dinosaurs, too.

So, the correct answer is 'Synsacrum'.