Respiratory System 0.0 / 5 ? BiologyRespiration and exerciseGCSEAQA Created by: Elisabeth MontagueCreated on: 23-11-17 12:39 What does your trachea split into? Bronchi 1 of 8 What surrounds each lung? Pleural membranes 2 of 8 What helps to keep the trachea open? Cartilage rings 3 of 8 What are the bronchi split into? Bronchioles 4 of 8 What are the air sacs called? Alveoli 5 of 8 What is the muscle below the lungs? Diaphram 6 of 8 Which muscle relax the rib cage? Internal Intercoastal muscles 7 of 8 Which muscle pulls the rib cage downwards? External Intercoastal muscles 8 of 8
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