Lungs 0.0 / 5 ? BiologyHealth, illness and diseaseASAQA Created by: LouiseCreated on: 28-04-14 12:20 Minute air sacs Alveoli 1 of 5 Flexible airway Trachea 2 of 5 2 divisions of the trachea Bronchi 3 of 5 Contraction leads to expiration Internal Intercostal Muscles 4 of 5 Contraction leads to inspiration External Intercostal Muscles 5 of 5
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