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Physiology Cardio

QuestionAnswer
Functions of the respiratory system Gas exchange (CO2, O2) • Regulates plasma pH • Endocrine/paracrine metabolism (i.e. contains angiotensin-converting enzyme) • Traps clots (thrombi) arising in systemic veins • Voice • Immunological defense against airborne microbes
Upper airways: Cleanse Warm Humidify Subject to URI
Lower airways: Gas exchange
Type I pneumocyte gas exchange
Type II pneumocyte surfactant
Define Pulmonary edema Abnormal buildup of fluid in the air sacs of the lungs, which leads to shortness of breath.
The Alveolar Wall Consists Of a Single Cell thick Epithelial layer
intrapleural fluid volume very small (100ml)
Ventilation Exchange of air between environment and alveoli via bulk flow
Conducting zone Trachea,bronchi, bronchioles, terminal bronchioles
Respiratory zone Respiratory bronchioles, alveolar ducts, alveolar sacs,
Created by: mel911
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