jackknife seizure 折刀状发作 

Jacobson's organ 犁鼻器 

Jakob-Creutzfeldt disease 海绵状脑病 

jaw clenching 牙关紧闭 

jaw reflex 下颌反射 

jaw-winking reflex 下颌瞬目反射 

jerk nystagnmus 跳动性眼球震颤 

joint receptor 关节感受器 

Jolly's reaction 约利反应 

juvenile gangliosidosis 少年型神经节苷脂沉积病