Anatomyrespiration

Anatomyrespiration - muscle contraction) and pressure drops...

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Click to edit Master subtitle style 5/8/11 Respiration Chapters 3 & 4
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5/8/11 Boyle’s Law P1V1=P2V2 As volume increases, pressure decreases by a proportionate amount Example: Doubling the volume of a closed container filled with a gas, such as air, will cause the a decrease in pressure by half
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5/8/11 What does this mean for respiration? Expansion of the lungs (volume goes up) will be accompanied by a drop in pressure. If volume of the lungs increases (by
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Unformatted text preview: muscle contraction) and pressure drops below the pressure outside the person (atmospheric pressure)- air will flow into the lungs = inspiration Airflow is caused by differences in 5/8/11 Respiratory Tract Components Lungs Bronchi Trachea Larynx (valve and protection) Pharynx Oral cavity (includes several valves) Nasal cavity (valve at pharyngeal...
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Anatomyrespiration - muscle contraction) and pressure drops...

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