How many unfused vertebrae are there?
The human body has 33 vertebrae. The cervical spine makes up the neck and has 7 vertibrae. Moreover, the thoracic spine has 12 vertibrae which the ribs attach to. The lumbar spine has 5 which make the lower back. Needless to say, the sacrum consists of 5 bones which are fused or stuck together and the coccyx is made up of 4 tiny bones and used to be a tail. Keep in mind that each of these vertebras consists of vertebral bodies that are cylindrical bones.