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Rings of Cartilage prevents the windpipe from collapsing.cartilage ringsIt is constructed of inflexible cartilage that always maintains it's shape.
If you swallow a pill and it accidentally passes into the windpipe, it will undoubtedly feel uncomfortable. You can get the pill out by coughing it up.
The epiglottis.
pharynx
Breathing stops for a moment when swallowing. So no breathing occurs when swallowing.
Rings of Cartilage prevents the windpipe from collapsing.cartilage ringsIt is constructed of inflexible cartilage that always maintains it's shape.
The epiglottis blocks the entrance to your windpipe when you swallow. This action prevents food from entering your trachea instead of your esophagus.
prevents food from food going down your windpipe
The nose, lungs and windpipe. These are the main organs involved in breathing.
Respiratory.The trachea (or windpipe) is a wide, hollow tube that connects the larynx (or voice box) to the bronchi of the lungs.
Because otherwise you might inhale the food or liquid into your windpipe and choke on it.
it is called the epiglottis.. i think that answers your question :P