短語詞組短語ventral nerve root 腹側(cè)神經(jīng)根;及兩條腹根神經(jīng)節(jié)ventral spinal root 脊神經(jīng)前根ventral motor root 腹側(cè)運動根;腹側(cè)根ventral l root 腹根ventral spinal nerve root 腹側(cè)脊神經(jīng)根ventral root fibers 前根纖維ventral root neurons 脊神經(jīng)前根神經(jīng)元ventral root of sac [古生]氣囊腹基ventral root reflex 前根反射 返回 ventral root