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Viral Infection of Lungs - Pneumonia (RESPIRATORY ZONE: alveoli (air…
Viral Infection of Lungs - Pneumonia
moving to higher altitude
70yr old woman moves to CO from TX
LUNGS: cone-shaped, surrounded by pleurae, connected to mediastinum by vascular & bronchial attachments
left lung 2 lobes; right lung 3 lobes
RESPIRATORY ZONE: alveoli (air filled sacs), terminole bronchioles feed into respiratory bronchioles, RB feed into alveolar ducts, AD lead into alveolar sacs
Type I Alveolar cells cover alveoli walls - made of Simple Squamous Epithelium
Type II Alveolar Cells scattered among Type I - made of Simple Cuboidal Epithelium
secrete fluid containing detergent-like substance called SURFACTANT
Alveolar Macrophages
Consume bacteria, dust, & debris
Dalton's Law of Partial Pressure
total pressure exerted by mixture of gases is sum of pressures exerted independently by each gas in mixture
Henry's Law
when gas comes in contact w liquid, the gas will dissolve in liquid in proportion to its partial pressure
increase of altitude = decrease of atmospheric oxygen level
decrease of atmospheric pressure, decrease of partial pressure of Po2 and the driving pressure for gas exchange in lungs
abscess from fluid build-up
respiratory failure: fast breathing, feeling of not being able to breathe, confusion, feeling sleepy, and lips/fingernails turn blue
circulatory system
tachycardia, fever
Bacteremia
septic shock
low BP - inefficient blood supply to tissues and organs
organ failure, death
Pleural effusion
pleura becomes swollen and fills with fluid
empyema
fluid build-up in lungs becomes infected
renal failure
Cardiovascular system
increased RBC due to low O2 levels
fatigue, joint pain, and sleep apnea
increased risk of heart attack