respiratory system
Breathing supplies oxygen and removes carbon dioxide. This topic is part of Human Body within Science & Nature. This page currently draws on 4 supporting questions, with answers and bonus facts available below.
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respiratory system trivia questions
The respiratory system's main job is exchanging oxygen and what gas?
Answer: Carbon dioxide
Bonus fact: Breathing supplies oxygen and removes carbon dioxide.
What organs are the main site of gas exchange in humans?
Answer: Lungs
Bonus fact: The lungs contain millions of tiny air sacs.
What tiny structures in the lungs exchange gases with blood?
Answer: Alveoli
Bonus fact: Alveoli provide a large thin surface for diffusion.
A bronchus is part of which body system?
Answer: Respiratory system
Bonus fact: The bronchi conduct air into the lungs.