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LO4 - 4.1 - 4.2, LO4 - 4.3 - 4.4, diaphragm contracts - Coggle Diagram
LO4 - 4.1 - 4.2
Anatomy
Pharynx - (throat) carries air, food & fluid down the nose and mouth.
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Trachea - stiff, flexible tube. carries air in and out of your lungs.
Nasal Cavity - divided into two sections called Nasal passages. The nasal passages filter and warm the air and make it moist before it goes into the lungs.
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Alveoli - where the blood & lungs exchange oxygen and carbon dioxide during the process of breathing in and out.
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Respiration System
When we use oxygen to break down food to release energy, carbon dioxide is produced as a waste material and this must be removed
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