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呃逆,俗称打嗝儿。它是由于膈肌不自主的间歇性收缩导致空气突然被吸入呼吸道内,并伴有声带闭合所产生的短促声响。呃逆属于消化系统症状。
Hiccup, commonly known as hiccups children. It is due to the diaphragm involuntary intermittent contraction led to air suddenly inhaled into the respiratory tract, accompanied by vocal cord closure caused by the short sound. Hiccup belongs to the digestive system symptoms.