A rear-end motor-vehicle crash has resulted in an unrestrained 22-year-old being injured. Vital signs are: pulse, 46; respirations, 24 (shallow); blood pressure 82/54; and skin, warm and dry. The assessment of motor function and sensation find them diminished in the arms. Based on those findings, what type of shock should you suspect?

Cardiogenic
Hemorrhagic
Neurogenic
Traumatic