All of the elements of the spinal column and vertebrae serve the purpose of protecting the spinal cord, which provides communication to the brain and mobility and sensation in the body through the complex interaction of bones, ligaments and muscle structures of the back and the nerves that surround it.
Humans are born with 33 separate vertebrae. By adulthood, we typically have 24 due to the fusion of the vertebrae in the sacrum.
Elements of the Spine
The elements of the spine are designed to protect the spinal cord, support the body and facilitate movement.
The nervous system is the communications network that controls and coordinates the muscle, organ and sensory function that takes place within our bodies.
The nervous system has two main parts: