4.Tetanus is characterized by powerful violent muscle spasms summed up by trismus, or lockjaw, Risus sardonicus, a persistent grin, and opisthotonos, a highly arched back with patient resting on his head and heels.
破伤风的典型表现为强有力的肌肉痉挛,记住典型三联:牙关紧闭、苦笑面容、角弓反张,即背部如弓样高耸,患者仅以头脚着地的体态。