Question

rings of cartilage are present in trachea, why?​

Answer 1

Answer:

(i) Rings of cartilage are present in trachea to prevent it from collapsing when less air is present in it. (ii) Lungs always contain a residual volume of air so that there is sufficient time to absorb oxygen and release carbon dioxide

Answer 2

Answer:

In the trachea, or windpipe, there are tracheal rings, also known as tracheal cartilages. Cartilage is strong but flexible tissue. The tracheal cartilages help support the trachea while still allowing it to move and flex during breathing. ... The first cartilage is broad and divided at the end.