Respiratory system 0.0 / 5 ? Health & Social CareAnatomy and physiology in practiceA2/A-levelOCR Created by: EandJ2013Created on: 25-01-15 13:51 35614 Across 1. Gaseous exchange takes place in the (7) 4. The flap that closes when swallowing (9) 5. Trachea to the (7) Down 1. Bronchioles to the (7) 3. Bronchi to the (11) 6. The percentage of oxygen exhaled is (7, 7)
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