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Respiratory Health
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The respiratory system plays a vital role in delivering oxygen to the body
fuel for all the body's functions. It also removes carbon dioxide waste,
eliminates toxic waste, regulates temperature, and stabilizes blood acid-alkaline
balance (pH).
The lungs are the largest part of the respiratory system and have both
"respiratory" and "non-respiratory" functions. The respiratory
function involves gas exchange the transfer of oxygen from the air into
the blood and the removal of carbon dioxide from the blood. Non-respiratory
lung functions are mechanical, biochemical, and physiological. The lungs
provide a defense against bacterial, viral and other infectious agents;
remove various metabolic waste products; control the flow of water, ions,
and large proteins across its cellular structures; and manufacture a variety
of essential hormones and chemical agents that have important biological
roles.
Respiratory diseases can arise from a number of causes, including inhalation
of toxic agents, accidents, and harmful lifestyles, such as smoking. Infections,
genetic factors, and anything else that affects lung development, either
directly or indirectly, can cause respiratory symptoms.
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