The death rattle is a symptom of swallowing dysfunction. Normally, our tongue rises to the top of the mouth and propels saliva, liquid or food backward. The epiglottis, a flap in the throat, flops forward to protect the swallowed substance from entering the airway.
濒死喉声是吞咽功能障碍的一个症状。正常情况下,我们的舌头会升到嘴巴上部,将唾液、液体或食物向后推动。喉部的组织片“会厌”向前扇动,防止咽下的物质进入气管。
In the dying process, the symphony of swallowing becomes a cacophony of weak and mistimed movements. Sometimes the tongue propels saliva backward before the epiglottis has time to cover the airway. Other times, the tongue fails to push at all and saliva trickles down the airway to the lungs in a steady stream. The death rattle is the lungs’ attempt to breathe through a layer of saliva.
在濒死过程中,吞咽协作变成了一些虚弱的、不合时机的运动。有时,舌头会在会厌挡住气管之前推动唾液向后走。还有些时候,舌头完全没有推动,导致唾液沿着气管不断慢慢流入肺部。濒死喉声是肺努力透过一层唾液呼吸的声音。
Despite the sound’s alarming roughness, it’s unlikely that the death rattle is painful. The presence of a death rattle doesn’t correlate with signs of respiratory distress.
尽管濒死喉声听起来特别艰难,但它不大可能是痛苦的。濒死喉声并不一定意味着呼吸困难。
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