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The top documents tagged [trachea open slide]
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RESPIRATORY SYSTEM LUNGS & AIR PASSAGES. WHY ARE THEY NEEDED n TAKE IN OXYGEN – GAS NEEDED BY ALL BODY CELLS n REMOVING CARBON DIOXIDE – GAS THAT IS A
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Respiratory System. Lungs and Air Passages Nose, pharynx, larynx, trachea, bronchi, alveoli and lungs Responsible for – 1. Taking in O2 (needed by all
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Respiratory System trachea bronchus (bronchi) bronchioles
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Respiratory System Gas Exchange Introduction What is our atmosphere made of? Nitrogen 78%, Oxygen 21%, Other 1% Why is breathing important? –Exchange
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