number
The tailbone, or coccyx, is made up of 3 to 5 fused vertebrae.
The sacrum is formed by the fusion of five vertebrae.
The 33 vertebrae in the human spine are divided as follows: 7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar vertebrae, 5 sacral vertebrae (fused into the sacrum), and 4 coccygeal vertebrae (fused into the coccyx).
it is a joint that has little or no movement
No. Sometimes the last 5 bones at the end of the vertebrate does not fuse. It is the fusing of these bones that make up the coccyx. An individual without this tailbone always sits with a slump.
No, the pubis is not the tailbone. The pubis is one of the three bones that make up the pelvic bone, while the tailbone, also called the coccyx, is a small triangular bone at the bottom of the vertebral column.
This is a tricky question as it is not clear which end of the spine we are referring to. At the head end there is a bone or vertebra upon which the head is resting this is known as the atlas, it does not have a body and its centrum fuses with the axis to provide a pivot for the head to turn on. At the other end of the spine - the tail end the last bones are fused together to form the coccyx, the number may vary from 3 to 5. These bones are rudimanetary and are usually fused together.
The question is not very specific. Most people consider the tail bone to be the sacrum. This is a wide, upside down triangular shaped bone formed by the fusion of 5 separate bones. Above that is the 5th lumbar vertebra. Some people refer to the coccyx as the tail bone. This is the absolute lowest segment of the spine. It is made of 3 small bones that fuse together in early childhood. Above the coccyx bone is the sacrum. From the skull moving down the spine you have 7 cervical vertebrae that make up the neck. Next you have 12 thoracic vertebrae that make up the middle back. The ribs are attached to this section. Next is 5 lumbar vertebrae, or your lower back. Next you have the sacrum, or 5 sacral bones in young children. Then you have the coccyx which in childhood is made up of 3 bones in young children before it fuses into one bone we call the coccyx.
The human backbone is also called the spine, and it consists of a vertebral column that has many bones. There are seven cervical, twelve thoracic, five lumbar, five fused sacral, and four fused coccygeal bones in an adult. So that makes a total of 33 bones.Read more: How_many_bones_make_up_the_human_backbone
Approximately 250. Some of the 300 bones a person is born with (such as the individual plates that make up the skull, and those at the base of the spine) have already fused together, while several others (like the multiple small bones in each wrist and ankle) won't finish doing so until around puberty. At the end of adolescence, the last of the growth plates in the arms and legs will have fused and stopped growing, leaving the average adult with around 206 bones.
The vertebral column is made of 7 cervical, 12 thoracic, and 5 lumbar vertebrae. Additionally the sacrum, or tailbone, consists of 5 vertebrae that are wholly or partially fused together.
Bones that make up your spine (and help keep the construction of your other bones together).