How many bones are connected to your spine?

The human spine is made up of 33 vertebrae, which are the bones connected to it. These vertebrae are divided into five regions: cervical (7), thoracic (12), lumbar (5), sacral (5 fused), and coccygeal (4 fused). The sacral and coccygeal vertebrae are fused into single structures, so there are 24 individual movable vertebrae.