0 Draw a diagram of human respiratory system and label on it(b) Trache

1.	0 Draw a diagram of human respiratory system and label on it(b) Trachea(d) Bronchi(a) Larynx(c) Lungs(i) Why do the walls of the trachea not collapsewhen there isless air in it?
Answer» (i) (ii) The trachea is supported by c-shaped rings of cartilage which hold them in place when there is less air inside it. So, the walls of trachea do not collapse even when there is a little air.

0 Draw a diagram of human respiratory system and label on it(b) Trachea(d) Bronchi(a) Larynx(c) Lungs(i) Why do the walls of the trachea not collapsewhen there isless air in it?

Answer»

(i)

(ii) The trachea is supported by c-shaped rings of cartilage which hold them in place when there is less air inside it. So, the walls of trachea do not collapse even when there is a little air.

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0 Draw a diagram of human respiratory system and label on it(b) Trachea(d) Bronchi(a) Larynx(c) Lungs(i) Why do the walls of the trachea not collapsewhen there isless air in it?

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