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Two friends are eating together on a dining table. One of them suddenly starts coughing while swallowing some food. This coughing would have been due to improper movement of
A
Tongue
B
Epiglottis
C
Diaphragm
D
Neck
Detailed Solution
The pharynx is a common passage for food and air; the oesophagus and the trachea both open into it.
The opening of the wind pipe is the glottis. During swallowing a cartilaginous flap, the epiglottis, covers the glottis and prevents the entry of food into the wind pipe.
If the epiglottis does not close the glottis properly, for example when a person talks or laughs while eating, food particles enter the wind pipe.
This triggers the cough reflex to expel the food.
Hence the coughing is due to improper movement of the epiglottis.
The opening of the wind pipe is the glottis. During swallowing a cartilaginous flap, the epiglottis, covers the glottis and prevents the entry of food into the wind pipe.
If the epiglottis does not close the glottis properly, for example when a person talks or laughs while eating, food particles enter the wind pipe.
This triggers the cough reflex to expel the food.
Hence the coughing is due to improper movement of the epiglottis.