The respiratory system works with the cardiovascular system to deliver oxygen. Manage lung health by understanding breathing techniques and exercise responses.
The brain is the primary controller of respiratory rate. It receives input from sensors that detect oxygen and carbon dioxide levels in the blood. Blood pH -- a reflection of its relative acidity or alkalinity -- also influences respiratory rate.
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The lining of your respiratory system, extending from your nose through the airways of your lungs, is coated with mucus. This clear, sticky substance helps keep the airways clean by capturing particles and chemicals from the air you breathe.
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