Question

food sometimes enters into wind pipe and causes choking. how does it happen

Answer 1

actually whenever we swallow something there is a fold of yellow elastic cartilage called "epiglottis" which closes the wind pipe so that food doesn't enter it, but sometimes when we are simultaneously talking and eating the epiglottis open hence food enters the wind pipe resulting in choke


SO TRY TO TALK LESS WHILE HAVING FOOD.

Answer 2

Hello buddy...
At  the back of your throat food and air both travel through the same tube for a short distance until the tube divides into two tubes – the oesophagus which carries food down into the stomach, and the trachea which carries air to the lungs. There is a small flap at the top of the trachea called the windpipe and this closes off the top of the trachea when you swallow some food or a drink. Sometimes food slips past the flap and into the windpipe – which can block the windpipe. This is called 'choking'. And this is how it occurs

Hope it helps you buddy..