CSDL5 - Physiology of Respiration Respiration Inspiration...

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1 Physiology of Respiration Respiration ± Inspiration ± Quiet ± Forced ± Expiration ± Passive ± Forces of torque, elasticity, and gravity ± Active ± Muscular activity Passive Expiration ± Torque ± Chondral portion of the rib cage ± Inspiration ± Torquing strain ± Elastic cartilage ± Restores rib cage to resting position
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2 Passive Expiration ± Elasticity ± Lung tissue is elastic ± Return to their original shape & size upon exhalation ± Gravity ± Acts on the rib cage to pull it back down during expiration Measurement of Lung Volumes ± Spirometer Measurement of Air Pressure ± U-tube manometer
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3 Four stages of gas exchange ± Ventilation ± Movement of air into the respiratory pathway ± Distribution ± Movement of the air into the 300 million alveoli ± Perfusion ± Oxygen poor vascular supply is perfused into the 6 billion capillaries that surround the alveoli ± Diffusion ± Actual gas exchange across the alveolar-capillary membrane Respiratory Cycle ± Cycle is defined as one inspiration and one expiration ± Quiet tidal respiration
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This note was uploaded on 04/10/2008 for the course CSD 315/615 taught by Professor Rachaeldemarco during the Spring '08 term at Syracuse.

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CSDL5 - Physiology of Respiration Respiration Inspiration...

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