A.骨骼 B.硬腦膜 C.軟腦膜 D.蛛網(wǎng)膜
A.由脊神經(jīng)節(jié)和后角帶入然后由前角離開(kāi) B.由后角帶入經(jīng)脊神經(jīng)節(jié)及前角離開(kāi) C.由脊神經(jīng)節(jié)和前角帶入然后由后角離開(kāi) D.由前角帶入經(jīng)后角及脊神經(jīng)節(jié)離開(kāi)
A.感應(yīng)器-神經(jīng)-大腦-神經(jīng)-肌肉 B.感應(yīng)器-神經(jīng)-脊髓-神經(jīng)節(jié)等 C.感應(yīng)器-神經(jīng)-神經(jīng)節(jié)-脊髓等 D.感應(yīng)器-神經(jīng)-神經(jīng)節(jié)-大腦等