Choking occurs when breathing is impeded by a constricted or obstructed throat or windpipe. First, it hisses, or forcibly exhales through a glottis or extension of the windpipe. Tracheal collapse is caused by a weakening of the tracheal rings in the windpipe. Jody stays by his side, constantly swabbing out the mucus that clogged the windpipe. It is a very serious disorder of the back of the throat near the windpipe. Brunel accidentally inhaled a half-sovereign coin, which became lodged in his windpipe. Reports stated that he was unable to cry for help due to his severed windpipe. The windpipe can also be blocked, which results in suffocation. Thus cockroaches, like all insects, are not dependent on the mouth and windpipe to breathe. Soon after, Crews kills Nevikov by crushing his windpipe. This is usually known as a collapsed windpipe. He surprises her inside her home, and she crushes his windpipe in self-defense. Afterwards, Negan gives one final squeeze that crushes Simon's windpipe, killing him instantly. According to the autopsy, the old synthetic windpipe did not appear to have been replaced. At that point, determined by autopsy, 90% of the synthetic windpipe had come loose.