Lung disorders Advanced Biology Stem Cells Forming An Artificial lung

Asthma Chronic airway inflammation Airway obstruction Hypersensitivity to a variety of stimuli Symptoms: difficult breathing, wheezing, chest tightness, anxiety

COPD: chronic obstructive pulmonary disease Chronic obstruction of airflow. Emphysema and chronic bronchitis. 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 Acute infection or inflammation of the alveoli. Alveoli fill with debris and fluid, interferring with ventilation and gas exchange Cause: Streptococcus pneumoniae bacteria

Tuberculosis Highly infectious communicable lung disease Bacteria may spread from the lungs to other organs Fatigue, wt. loss, coughing blood, night sweats There are now strains of TB that are Multi-drug resistant

Pulmonary edema Abnormal accumulation of fluid in the interstitial spaces and alveoli. Can be caused by heart failure or “leaking” capillaries Painful, labored breathing

Pulmonary edema

H1N1 influenza Virus spreads from person to person Fever, cough, runny nose, body aches, headache, fatigue To prevent infection: Get a flu shot Wash hands Cover your cough