Table of Contents
PPT Slide
Topics for Today’s Lecture
Partial Pressures
Respiratory Muscles
Inspiration: Muscle Activity
Rib Elevation and Volume Changes
Expiration: Muscle Activity
Changes in Lung Pressure and Volume
Pressure Changes
Airway Collapse During Forced Expiration
Exercise and Lung Disease
Surface Tension on the Alveolus
Law of LaPlace and Alveolar Collapse
Pulmonary Surfactant
Surfactant: Counteracts Collapse
Interdependence of Alveoli
Variations in Lung Volume
Spirogram of Lung Volume Changes
A Spirometer
Maximum Lung Volume Changes
Matching Blood Flow and Air Flow
Hemoglobin/Oxygen Binding Curve
Hb Lowers P O2
Tissue Environment Alters Hb
Transport of CO2
Bicarbonate Ion Formation
Hyper and Hypo Ventilation
Respiratory Control Centers
Control of Inspiration: Dorsal Respiratory Group
Peripheral Chemo-Receptors
Low P O2 Effects on Respiration
Effect of High P CO2
Effect of H+ on Respiration
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