Ch 39 pt 2 Flashcards
Respiratory Pigments
Binding affinity (ability to hold O2)
Hemoglobin
Myoglobin
Factors affecting Binding Affinity
Pigment type
Temperature
pH
CO2
Loading vs Unloading
Hemoglobin
Red blood cells
4 heme groups
4 Fe groups
Oxyhemoglobin and Doxyhemoglobin
Myoglobin
Muscle cells
1 Fe atom
High binding affinity
Blood Oxygen
Venous blood
Alveolar gas
Arterial blood
Transport of Carbon Dioxide
Binds to proteins in hemoglobin
Upper Respiratory Infections
Nose, sinus, pharynx, or larynx
Ex: Flu, common cold, strep throat (not limited to these)
Lower Respiratory Infection
Bronchus, Bronchioles, and lungs
Ex: Bronchitis and Pneumonia
Viral or bacterial
Chronic Obstructive Pulmonary diseases
Long-term obstruction of air was
Ex: Chronic bronchitis, asthma
Astma
Allergen
Histamines
Airway obstruction
Black Lung
Pneumoconiosis
Coal miners
Coal dust - repeated exposer -> inflammation -> causes scarring
Not genetic
Creates difficulty talking
Emphysema
Low compliance -> lose elasticity, alveoli breakdown
90% of deaths
Lung Cancer
Majority of cancer deaths
Originates as bronchi
Metastasizes quickly
Chronic cough/cough with blood