Transcript Lung disorders - Sonoma Valley High School

Lung disorders
Advanced Biology
Stem
Cells
Forming
An
Artificial
lung
Asthma
O
O
O
O
Chronic airway inflammation
Airway obstruction
Hypersensitivity to a variety of stimuli
Symptoms: difficult breathing, wheezing, chest
tightness, anxiety
COPD: chronic obstructive pulmonary disease
O Chronic obstruction
of airflow.
O Emphysema and
chronic bronchitis.
O Cause: exposure to
cigarettes or 2nd
hand smoke
Lung cancer
Chronic cough, blood in
sputum, wheezing,
chest pain
85% cases are due to
smoking.
Usually diagnosed in
advanced stages,
patients die within one
year.
Lung cancer
Types of Lung Cancer
There are two main types of lung cancer,
distinguished by the appearance of the cancer
cells under a microscope. Small-cell lung cancer is
the more aggressive of the two, meaning it can
spread quickly to other parts of the body early in
the disease. It is strongly tied to cigarette use and
rarely seen in nonsmokers. Non-small-cell lung
cancer grows more slowly and is more common,
accounting for almost 90% of all lung cancers.
Web MD
Small and non-small cancer
Pneumonia
O Acute infection or
inflammation of the
alveoli.
O Alveoli fill with debris
and fluid, interferring
with ventilation and
gas exchange
O Cause: Streptococcus
pneumoniae bacteria
Tuberculosis
O Highly infectious
communicable lung
disease
O Bacteria may spread
from the lungs to
other organs
O Fatigue, wt. loss,
coughing blood,
night sweats
There are now strains of TB that are
Multi-drug resistant
Pulmonary edema
O Abnormal
accumulation of
fluid in the
interstitial
spaces and
alveoli.
O Can be caused
by heart failure
or “leaking”
capillaries
O Painful, labored
breathing
Pulmonary edema
H1N1 influenza
O Virus spreads from
O
O
O
O
O
person to person
Fever, cough, runny
nose, body aches,
headache, fatigue
To prevent infection:
Get a flu shot
Wash hands
Cover your cough