Question

food sometimes enters the windpipe and causes choking.
how does it happen

Answer 1

The trachea is commonly called the wind pipe. It is covered by the epiglottis so when a person swallows food,it does not go into the trachea. If food enters the trachea,it can block it completely and cause a person to choke to death.

Answer 2

Answer:

the throat is composed of two pipes then when we will talk while eating food  will go in a wrong  way in the food pipe leading to choke.

then,when the food enters in the food pipe  there is no more supply of gases to our body according to suffocation.