Question

Give reasons for the following:
(i) The glottis is guarded by epiglottis.
(ii) It is said to not speak while eating.
(iii) Walls of trachea are supported by cartilage rings. (3 Marks)

Answer 1

1)glottis gets covered by a small cartilaginous flap of skin called epiglottis. This prevents the entry of food particles into wind pipe while swallowing.
2)It is said not to speak while eating because, while eating, a flap of cartilage covers wind pipe to prevent the food particles to enter trachea. Talking during eating is bad for stomach due to the fact that some air also goes with food, leading to blocks in food pipe and uneasiness while swallowing.
Hope this answer helps you.

Answer 2

(i) The gloths is guarded by epiglottis. So, it prevents entry of food into wind pipe.

(ii) We are advised not to talk while eating food, because the food may enter the windpipe instead of entering into the food pipe.

(iii) The walks of Trachea is supported by cartilage rings Since they prevent air passing from Collapse