The bronchi divide into the lungs and make fine tubes that are termed as:
Correct answer: B. Bronchioles
- A. Bronchi
- B. Bronchioles
- C. Pharynx
- D. Alveolar duct
Explanation
the main airways (bronchi) branch off into smaller and smaller passageways - the smallest, called bronchioles. pharynx duct leads to bronchi hence this option is incorrect bronchioles lead to alveolar ducts
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About Respiration
The human respiratory system includes the air passages, lungs, alveoli and breathing muscles, while gaseous exchange explains how oxygen enters blood and carbon dioxide leaves it by diffusion. The effects of smoking include damage to cilia and alveoli, reduced gas exchange, chronic bronchitis, emphysema and increased risk of lung cancer.
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