While the body has 31 spinal nerves, you only have 30 dermatomes. That’s because C1 (in your neck) doesn’t provide sensory function. At the lower end, the 11 lumbar, sacral, and coccygeal ...

These nerves control the motor function ... It is made up of the atlas (C1) and the axis (C2). These vertebrae are atypical and are different in shape and function from the rest of the cervical ...