A.離心性收縮 B.向心性收縮 C.等長(zhǎng)收縮 D.等張收縮 E.等速收縮
A.面色蒼白、出汗 B.頭暈 C.心率加快 D.收縮壓下降,脈壓增大 E.重者產(chǎn)生暈厥
A.脊神經(jīng)覆蓋有神經(jīng)外膜 B.外周神經(jīng)覆有厚厚的神經(jīng)外膜 C.脊神經(jīng)近脊神經(jīng)節(jié)處才有一薄層神經(jīng)外膜 D.脊神經(jīng)由神經(jīng)纖維和胞體組成 E.外周神經(jīng)只有神經(jīng)纖維組成