All About Disease Unit 5-4 Notes Mr. Hefti Pulaski Biology 1. What is disease? O change interfering w/ bodys appearance, structure or function O disrupts homeostasis O Pathology: study of diseases 2. Disease types O Acute diseases: come on suddenly, than a few weeks O Ex. a cold O Chronic diseases: months or years; may recur O Ex. arthritis 3. Effects of disease O The course of a disease depends on: O Overall health O Treatment received 3. O Every disease has effects called symptoms O Ex. O Fever O Swelling O Pain O Fatigue O Dizziness O Rashes 3. O Symptoms offer clues used for a diagnosis O Medical exams may be needed O Urine samples O CT scans O Blood tests O X rays O MRI 4. Classification of disease O Infectious diseases can spread / caused by microbes O Ex. O Malaria O Chicken pox O Athletes foot O Bronchitis O Rabies 4. O Noninfectious diseases dont spread O Ex. O Emphysema O Diabetes O Lupus O Huntingtons Disease O Broken bone