Wind pipe is commonly known as
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trachea
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lungs
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external nostrils
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pharynx
A
Correct answer
Explanation
The trachea, or windpipe, divides into two principal bronchi (plural for bronchus) as it enters the lungs. The principal bronchi are further divided into smaller bronchi. Further divisions of the bronchi eventually lead to tiny tubes, called bronchioles, which lead to tiny air sacs known as alveoli.