A.L2~L3神經(jīng)根 B.L4~S1神經(jīng)根 C.L4~S3神經(jīng)根 D.L2~L3神經(jīng)根前支 E.L4~S2神經(jīng)根
A.C5~C6神經(jīng)根 B.C5~T1神經(jīng)根 C.C6~C8神經(jīng)根 D.C6~T1神經(jīng)根 E.C8~T1神經(jīng)根