下列有關骨骼肌鬆弛劑作用機轉之敘述，何者錯誤？
diazepam 活化中樞神經之\mathrm{GABA}_{\mathrm{A}} receptor
\mathrm{GABA}_{\mathrm{A}}
baclofen 活化中樞神經之\mathrm{GABA}_{\mathrm{B}} receptor
\mathrm{GABA}_{\mathrm{B}}
tizanidine 拮抗中樞神經之\mathrm{\alpha}_{2}-adrenoceptor
\mathrm{\alpha}_{2}
dantrolene 抑制骨骼肌細胞內之ryanodine receptor channel
