短語(yǔ)詞組短語(yǔ)spinal l nerves 脊神經(jīng)rootlets of spinal nerves 脊神經(jīng)根絲根絲motor root spinal nerves 脊神經(jīng)運(yùn)動(dòng)根spinal nerves posterior root 脊神經(jīng)後根ventral root spinal nerves 脊神經(jīng)腹側(cè)根plexus of spinal nerves [解剖]脊神經(jīng)叢roots of spinal nerves 脊神經(jīng)根dorsal root spinal nerves 脊神經(jīng)背側(cè)根loops of spinal nerves 脊神經(jīng)袢 返回 spinal nerves