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CBSE Class 10 Answered

<div>why do human being have hiccup ? is there any effect on respiration&nbsp;</div>
Asked by pratapadhi | 03 Jun, 2017, 11:11: AM
Expert Answer
When we eat food, a tiny flap present in the wind pipe closes and restricts the entry of food into the respiratory pathway. However, when we eat food in a hurry, the flap gets lesser time to close the wind pipe. As a result, some food particles enter the wind pipe. This obstructs the movement of air in the wind pipe resulting in coughing, hiccups or a choking sensation. When the diaphragm contracts out of rhythm, it causes hiccups. Each spasm of the diaphragm makes the larynx and the vocal cords close suddenly. This results in a sudden rush of air into the lungs. Our body reacts with a gasp or chirp, creating the sound characteristic of hiccups.
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