1. Two short tubes that carry air into the lungs. 2. Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide. 3. Muscular structure that helps to expand and... 1. Two short tubes that carry air into the lungs. 2. Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide. 3. Muscular structure that helps to expand and contract the lungs, forcing air in and out.

Question image

Understand the Problem

The questions from the image are multiple-choice questions related to human anatomy and the respiratory system. They inquire about structures associated with air passage and gas exchange in the lungs.

Answer

7 - Bronchi, 8 - Alveoli, 9 - Diaphragm

The final answer is: 7 - Bronchi, 8 - Alveoli, 9 - Diaphragm

Answer for screen readers

The final answer is: 7 - Bronchi, 8 - Alveoli, 9 - Diaphragm

More Information

The bronchi are the main passageways into the lungs, alveoli facilitate gas exchange, and the diaphragm is the main muscle involved in respiration.

Tips

Commonly, people confuse bronchi with bronchioles, which are smaller branches of the bronchial tubes.

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