Hiccup is a myoclonus of the diaphragm in which the diaphragmatic muscle is suddenly contracted. Simultaneously, the intercostals muscles are contracted and the larynx is closed which generates the hiccup sound.
Hiccup is a myoclonus of the diaphragm in which the diaphragmatic muscle is suddenly contracted. Simultaneously, the intercostals muscles are contracted and the larynx is closed which generates the hiccup sound.