CBSE BOARD X, asked by deadpoolstark3ox52oe, 1 year ago

the two openings of pharynx and one leading to trachea and the other leading to oesophagus lie very close to each other yet food we swallow normally does not enter into the trachea why?

for 5 marks please​

Answers

Answered by MrsBadger
2
Epiglottis is a cartilage lying on top of larynx. During swallowing the larynx elevates, causing the epiglottis to fall on the glottis (opening into larynx) like a lid and closing it off. This prevents food from entering the windpipe (trachea).

deadpoolstark3ox52oe: thanks
MrsBadger: no problem
Answered by Anonymous
3

Answer:

The food does not enter into trachea because during swallowing, the aperture leading to trachea (glottis) gets covered by a cartilaginous flap called epiglottis and the food has no other passage except going into the oesophagus.

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