Which is the correct pathway of Carbon Dioxide out of the lungs? - ProProfs Discuss
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Which is the correct pathway of Carbon Dioxide out of the lungs?



A. Trachea ~> bronchus ~> bronchioles ~> alveoli ~> nose
B. Alveoli ~> bronchus ~> nose ~> trachea ~> bronchioles
C. Nostril ~> alveoli ~> bronchus ~> bronchioles ~> trachea
D. Alveoli ~> bronchioles ~> bronchus ~> trachea ~> nose

This question is part of Science Form 3
Asked by ErichaJ, Last updated: Jul 12, 2020

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2 Answers

G. Roland

G. Roland, Professor, Austin

Answered Sep 06, 2019

The correct answer to this question is D, Alveoli ~> bronchioles ~> bronchus ~> trachea ~> nose. Alveoli's are tiny balloon-shaped air sacs. Along with carbon dioxide, it also exchanges oxygen through the bloodstreams. Bronchioles are passageways. They pass through the mouth or nose to the alveoli. The bronchus also passes air but does so through the trachea.

The trachea, also known as the windpipe, passes air through the lungs. Lastly, the nose allows us to inhale and exhale oxygen, which helps us live. All these are important to pass carbon dioxide through the body, and all animals have these parts in their body.

 

ErichaJ

ErichaJ

Answered Nov 05, 2017

Alveoli ~> bronchioles ~> bronchus ~> trachea ~> nose
 

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