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 osteophytes are bone spurs that grow on any of the seven vertebrae in the cervical spine (neck), involving the spine from the base of the skull to the base of the neck (C1 - C7 vertebrae). 1  Read more: Cervical Spine Anatomy and Neck Pain.