In tetanus, Renshaw cells fail to work and the alpha motor neuron keeps firing without any inhibitory control, causing muscle rigidity and spasm.

破伤风患者中，闰绍细胞失去其功能，α运动神经元失去上级抑制，持续兴奋引起肌肉强直收缩和痉挛。

A bite from a black widow has its own set of problems, potentially leading to latrodectism, which is an illness categorized by muscle rigidity, vomiting and excessive sweating.

被黑寡妇咬一口有其自身的一系列问题，可能会导致腹痛症， 这是一种以肌肉僵硬、呕吐和出汗过多为特征的疾病。