Transcontinental railroads in and near the United States (1887). A transcontinental railroad is a contiguous network of railroad trackage that crosses a continental land mass with terminals at different oceans or continental borders.
Normal cervical range of motion is. 1  Flexion â 80 to 90 degrees. 2  Extension â 70 degrees. 3  Lateral flexion â 20 to 45 degrees on both sides.  Rotation â 90Â° of rotation to both sides.
Cervical spondylopathy is an uncommon condition involving abnormal development of the bones in the neck (the cervical vertebrae). The deformed bones may directly compress the spinal cord or cause soft tissues in the spine, such as the discs between the vertebrae, to thicken and compress the spinal cord.