Question

The 33 separate bones of the backbone are called​

Answer 1

Vertebrae

Step-by-step explanation:

Vertebrae are the 33 individual bones that interlock with each other to form the spinal column. The vertebrae are numbered and divided into regions: cervical, thoracic, lumbar, sacrum, and coccyx.

Answer 2

Vertebrae

Step-by-step explanation:

Your back can't be a solid bone because you wouldn't be able to pick things up off the ground, or twist around to see things.