. In human beings, air is taken into the body through the nostrils. From here the air passes to throat
and then into the lungs. Rings of cartilage are present in the throat.
(i) Which of the following prevent collapsing of trachea?
(A)Diaphragm (B)alveoli (C) rings of cartilage (D) ribs
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Answer:
The trachea is one part of the respiratory tree, that is a conduit for air to pass through on its way to or from the alveoli of the lungs. This transmits oxygen to the body and removes carbon dioxide.
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Answer:
The answer is rings of cartilage
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