On the other hand, orthotics are a functional device, designed to correct and optimize our foot function. Some insoles also feature an arch support, however they tend to be mostly made of soft materials. As a result, the support they provide is often too weak to have any effect.
Vertebrae and Cervical Spinal Nerves. The cervical spine (sometimes abbreviated as c-spine in the medical world) begins at the base of the skull. Seven vertebrae make up the cervical spine with eight pairs of cervical nerves. The individual cervical vertebrae are abbreviated C1, C2, C3, C4, C5, C6, and C7. The cervical nerves are also abbreviated; they are C1 through C8.
Your 7 cervical vertebrae support your head and neck and allow you to nod and shake your head. Your ribs attach to your 12 thoracic vertebrae. Your five sturdy lumbar vertebrae carry most of the weight of your upper body and provide a stable centre of gravity when you move. Your sacrum is made up of five fused vertebrae. It makes up the back wall of your pelvis. Your coccyx is made up of four fused vertebrae.