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Image of spine with a breakdown of functions.The first section is the cervical which is C1-C8. The second section is the thorasic which is T1-T12. The third section is the lumbar which is L1-L5. And the fourth section is the sacral which is S1-S5.

C2 controls head and neck, C3 and C4 controls diaphram, C5 controls deltoids and biceps, C6 controls wrist extenders, C7 controls ticeps, C8 and T1 controls hands. T2 through T6 controls chest muscles and T7 through T11 controls stomach muscles. T12 through L4 controls leg muscles. L5 through S2 controls bowel and bladder. S3 through S5 controls sexual functions.