A.胸部皮膚和肌肉 B.前肢的皮膚和肌肉 C.腹壁皮膚和肌肉 D.股部和后肢皮膚肌肉
A.感覺神經(jīng)纖維 B.運動神經(jīng)纖維 C.交感神經(jīng)纖維 D.感覺和運動神經(jīng)纖維
A.神經(jīng)細胞體 B.神經(jīng)細胞核 C.神經(jīng)纖維 D.神經(jīng)核