An Introduction to the Respiratory System
An Introduction to the Respiratory System
An Introduction to the Respiratory System
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Breathing<br />
• breathing represents life!<br />
– first breath of a newborn baby<br />
– last gasp of a dying person<br />
• all our body processes directly or indirectly require ATP<br />
– ATP syn<strong>the</strong>sis requires oxygen and produces carbon<br />
dioxide<br />
– drives <strong>the</strong> need <strong>to</strong> brea<strong>the</strong> <strong>to</strong> take in oxygen, and eliminate<br />
carbon dioxide<br />
• <strong>the</strong> respira<strong>to</strong>ry system consists of a system of tubes that<br />
delivers air <strong>to</strong> <strong>the</strong> lung<br />
– oxygen diffuses in<strong>to</strong> <strong>the</strong> blood, and carbon dioxide diffuses<br />
out<br />
• respira<strong>to</strong>ry and cardiovascular systems work <strong>to</strong>ge<strong>the</strong>r <strong>to</strong><br />
deliver oxygen <strong>to</strong> <strong>the</strong> tissues and remove carbon dioxide<br />
– considered jointly as cardiopulmonary system<br />
– disorders of lungs directly effect <strong>the</strong> heart and vise versa<br />
• respira<strong>to</strong>ry system and <strong>the</strong> urinary system collaborate <strong>to</strong><br />
regulate <strong>the</strong> body’s acid base balance
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