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.
A fracture, or break, in one of the cervical vertebrae is commonly called a broken neck. Cervical fractures usually result from high-energy trauma, such as automobile crashes or falls. Athletes are also at risk. A cervical fracture can occur if: 1  A football player spears an opponent with his head. minor compression fracture can be treated with a cervical brace worn for 6 to 8 weeks until the bone heals. A more complex or extensive fracture may require traction, surgery, 2 to 3 months in a rigid cast, or a combination of these treatments.